The Grapevine

 

Williamson County Chapter Native Plant Society Newsletter

 

February-March 2007

 

 

Contents

Upcoming Events

Program Notes

Club Activities

Winter’s arrival

Featured Plant

Garden Design

Endemic Plants

Garden Guides

Resource List

Club Information

The holidays are over but it is still cold out.  However, for the native plant gardener it is time to think of planting those new planting beds or plan changes in the current beds.  This issue of the newsletter explores some aspects of garden design you may want to consider.  For hikers and plant rescuers, it is also time to plan.  This year, you might want to work on documenting your finds and identifying the Texas endemic plants located in our county.  Supporting information is given in the article on endemic plants.

 

I would like to give special thanks to Reid Lewis (Sweetbriar Nursery) and Agnes Plutino for their review of the plant and garden guide information. Also thanks to Susan Waitz for program information and program notes, Marilyn Perz for the photographs of the pot luck supper/silent auction and field trip information, Kathy McCormack for her class survey, Agnes Plutino for her wonderful thoughts on winter’s arrival and always to Jason Spangler for his support in placing this newsletter onto our web site and information on prairies.

 

 

Upcoming Events

 

 

February Meeting Program

February 8; 7:00 PM

Williamson County Agriculture Center

 

Organic Solutions to Everyday Gardening Problems

by Judy Barrett

 

 

Judy Barrett is the founding editor and publisher of the bimonthly newsmagazine, “Homegrown: Good Sense Organic Gardening for Texas,” which is based in Taylor.  She was also editor and publisher of Malcolm Beck’s book, “The Garden-Ville Method”.  She has served as editor of the “The New Garden Journal”, as well as host of the public television series “The New Garden”.  Judy is an experienced herbalist and cookbook author, having published “Tomatillos: A Gardeners Dream, A Cook’s Delight”.  She also wrote the book “How to Become an Organic Gardener in 7 Easy Steps”.  She continues to write articles for many gardening related publications.  “Homegrown” is typically available at our meetings and at many garden centers.  You can also get a sample by going on line to http://www.homegrowntexas.com/.  There’s also an associated web site called the Texas Garden Web Ring which provides information on organic gardening, wildlife, and butterflies.  This site can be accessed by clicking on http://www.mindspring.com/~roadrunner1/garden/TexasRing.html.

 

 

 

 

 

March Meeting Program

March 8; 7:00 PM

Georgetown Public Library

 

 

Dried Plant/Flower Arranging by Betty Hughes

 

 

Betty Hughes is a member of the Sequin NPSOT chapter and will lead a hands-on demonstration creating beautiful arrangements for your home or office using dried native plants.  She led the group who made the arrangements for the San Antonio Symposium.  Start collecting interesting grasses, seed pods, plant parts, and any other native plant parts to be used in making arrangements.  Betty will also bring materials with her so everyone can participate.  Bring your own containers in which to make the arrangements.  Styrofoam bases will be provided.

 

 

 

Public Information Meeting

Proposed Georgetown Tree Ordinance

 

 

Wednesday; February 7; 1:30 PM

 

 

Hewlett Room

Georgetown Public Library

402 West 8th Street

 

 

This presentation is brought to you by the City Manager’s office and the Planning & Development Department.  For more information about the meeting, please call 512-930-2545.

 

The ordinance should go to the second and hopefully final reading at the City Council Meeting on February 13 at 6:00 PM.  Plan to attend this meeting if you are interested.

 

 

 

Work Day

Saturday; February 10; 10:00 AM-2 PM

 

 

Old Machu Cemetery Prairie at Granger Lake

(Directions will be available at February 8 meeting)

 

 

Please bring your own tools if possible (such as loppers, pruning saws, other tools to cut small trees). Also bring gloves, water, and a snack or sack lunch for yourself.  For more information, contact Scott Lenharth at Scott_Lenharth@Dell.com or Marilyn Perz at dmperz@thegateway.net.

 

 

 

 

Annie Purl Elementary School Science Night

1700 Laurel Street

Georgetown

 

March 1; 6-7:30 PM

 

We have been invited to participate in "Science Night" at Annie Purl Elementary School at 1700 Laurel Street in Georgetown. We will provide hands on experience for the students and their parents by teaching them to make recycled paper seed starter butterflies.

 

This is part of our outreach from the Heritage Gardens which is adjacent to the school. In addition to the Bluebird garden that we maintain along the trail there, we are working with Natalie Vreeland, Horticulturist at the Heritage Garden to identify an area to be left as a wildflower meadow this Spring. She will protect this area

from mowing and we will add additional wildflower seeds.  This meadow can then be used as a destination for fieldtrips from the school and increase the students’ awareness of the more wild side of gardening.

 

Please consider volunteering to help with this project and see Janet Church or Marilyn Perz at our February meeting.

 

 

Cibolo Nature Center’s 17th Annual Mostly Native Sale

Kendall County Fair Grounds

HWY 46 in Boerne, Texas

 

Saturday; April 7, 9 AM to 4 PM

 

More than 30 nurseries and plant-related vendors will show their Hill Country roots during the 17th Annual Mostly Native Plant Sale on Saturday, April 7 from 9 a.m. – 4 p.m., at the Kendall County Fair Grounds on Highway 46 in Boerne.  The event is two dollars for adults and children under twelve are free, open to the public and a great alternative to the hustle and bustle of Fiesta activities.

 

Both experienced gardeners and novices alike will benefit from the free demonstrations and presentations held throughout the day. Topics include pruning trees and shrubs, wildscaping, building bird boxes, composting and water conservation. 

 

All of the vendors donate some of their proceeds to the Cibolo Nature Center located on 100 acres adjacent to the fair grounds.  The goal of the nature center is to protect greenspace through public education and conservation advocacy.  The CNC serves as a nature center for the City of Boerne and focuses its programs on education and protection of the Southern Hill Country region.

 

For more information or details, call the Cibolo Nature Center at (830) 249-4616 or send email to nature@cibolo.org.

 

 

Meeting Notes

                                                                                        By Susan Waitz

 

 

Meeting minutes can be found on the website http://www.npsot.org/WilliamsonCounty/. Copies will be available at the meeting.

 

 

January 11 Program Notes

 

Our Speaker for January was Pat McNeal from NcNeal Growers in Manchaca.  His talk, "Don't Blame The Plants" gave a unique view of horticulture and was in-depth in explaining why many planted gardens and landscapes fail.  Pat has over 20 years experience working with natives, and a background in ecology and botany. 

 

From his experience, he has seen horticulture historically approached similar to agriculture.  A location is amended to fit the plants which the grower wants to grow there, regardless of the location's inherent suitability for the chosen crop/plant.  Therefore, soil tests are done and huge amounts of money are spent on chemicals and soil amendments to allow non-native plants to grow on the site.

 

From a horticultural perspective, the opposite approach makes more sense.  Observe the location and determine which natives will grow on the site without any amendments at all!  The result of this approach is more success with the garden, less money spent on purchasing plants to replace dying specimens, less money and work amending the soil and constantly adding chemicals, less water use, and ultimately less work and more enjoyment of your garden.

 

Your yard or garden area may contain many different "mini-ecosystems" and plant choices must be made accordingly.  Annuals and early succession species do best in disturbed soils.  Cedar Elms need about 3 feet of soil.  Pecans and Post Oaks need 6 feet of soil.  Grasses need less moisture and will grow in shallower soils and in heavy clay.  Trees do not do well in clay, since when the clay dries out and cracks it can break the roots as well.  Grasses can re-grow their root systems (normally replace 30-40% of roots every year).  On shallow, rocky slopes (well-drained) woody plants will thrive (Mountain Laurel, Evergreen Sumac).  Cedar, Live Oak, sedges, Pavonia's and Turk's Cap will thrive in shallow soil with rocky outcrops

 

In restoring bare, disturbed soil start with early succession plants as late stage plants will not find the necessary biological agents in the soil for successful germination.  You must allow the area to evolve for 4 or 5 years until the location is ready for later stages.  Full prairie restoration takes thousands of years, but a half dozen successional steps can sometimes short-circuit to 3 stages,  4-5 years apart.  The micro-organisms in the soil must develop to the point where mycorrhizal fungi is present to support climax plants.  The hyphae, root hairs of the fungus penetrate the root cells of the plant and can extend the root system of the plant 100X.  Prairies do not support trees well as bacteria in the soil supports the plants, and fungi is not yet sufficiently present.

 

Look around your neighborhood for plants which have the same growing conditions as your desired garden area.  Go to parks and preserves and observe the plants and their growing conditions.  Local nurseries can also help to choose specimens which can thrive in your yard

 

 

Club Activities

 

December 2006 Pot Luck/Silent Auction

 

The December pot luck and silent auction was held December 14 at the Williamson County Agriculture Center.  The following two pictures show the club members enjoying the great buffet.

 

  

 

The next three pictures were shot during the silent action.  In the first picture, Phyllis Dolich and Billye Adams are choosing plants donated Vicky and Joseph Husband.  In the second picture, members review the auction items.  The final picture shows Kathy Galloway accepting payment for auction items from Ken Shoen.

 

  

 

 

 

Greenhill Rescue Site

 

The Greenhill rescue site is still open.  Plenty of rosettes have been spotted and are ready to be dug.  The land to the south of Greenhill is also available for plant rescue.  It has not been mowed so it is easy to spot the dead stalks of Liatris sp. (Gayfeather) for those who are interested.  Watch out for poison ivy in the tree line separating the two sites.  Greenhill a small street going off of Old Settler’s Road (FM 3406) in Round Rock.  It is across the street from Toppan and have several very large for sale signs on the property.

 

Plant Classes Survey Summary

 

In December 2006, the NPSOT WC Chapter conducted a survey of its members to gauge the interest in plant classes which might be organized in 2007.  Twenty (20) responses were received from the December monthly meeting, and 13 responses were received from email for a total of 33 responses.  Sixteen (16) people indicated that they were not interested in taking any plant classes (11 blank survey forms returned at the monthly meeting plus five email responses).  Of the 17 people who indicated an interest in taking plant classes in 2007 (52 % of the total responses), the preferences were:

 

 

Topic

Number of responses from those interested in classes

Native Trees, Shrubs, Vines, Grasses, Ferns, Forbs, and/or Cacti of Central Texas

15 (22 %)

Native Plant Propagation

11 (16 %)

Wildflowers of Central Texas – this topic may need to be broken down into smaller areas…...

10 (15 %)

Beginning and/or Intermediate Botany

9 (13 %)

Edible Native Plants of Central Texas – flowers, herbs, fruits, nuts, and/or berries

8 (12 %)

Aquatic and/or Fragrant Native Plants of Central Texas

7 (10 %)

Invasive Plants of Central Texas – trees, shrubs, vines, grasses, ferns, forbs, flowers, and/or aquatics

4 (6 %)

Native Plants in other areas of Texas

Which areas ?  Edwards Plateau, S TX, W TX, SW TX

3 (4 %)

 

Do you have any additional plant classes to suggest ?

 

*       Visit largest/oldest specimen trees/shrubs in the Count

*       Historical uses of plants (e.g., dyes, etc.)

*       Land management – identify natives vs. non-natives

*       Care and maintenance

*       Lady Bird Johnson Wildflower Center (LBJWC) classes

*       Native plant guilds (i.e., permaculture)

*       Related soil biology

*       How to identify plants (trees, shrubs, perennials, etc.) when not flowering (both mature and immature)

*       “Native Plants and Plant Communities of Central Texas” which could teach people not only the individual native plants, but also the native plant communities (groups of native plants that grew together) that make up our native ecosystems (the vegetative part of our natural world):  the Blackland Prairie (mostly tallgrass prairies) to the east, the Lampasas Cut Plains (prairies and woodlands) to the west, and the Edwards Plateau (savanna, woodlands, and streams) to our southwest

 


 

Would you be willing to participate in a class where everyone takes turns leading the discussion/study ?

 

*       Yes = 9

*       No = 4

*       Maybe = 1

 

Would you be willing to teach any of these classes ?  And/or can you recommend anyone who may be willing to teach any of these classes ?  If so, which one(s) ?

 

*       Seven members volunteered to either teach, co-teach, or help develop/coordinate a class – Thank You !!  Topics included plant propagation and wildflowers.

*       Five additional instructor resources were suggested from The Nature Conservancy, Texas Parks and Wildlife Department, and Texas A&M University.

 

Any other comments ?

 

*       Include color photos/slides/maps in the class materials

*       Class costs ?

*       Class times ?

*       Ask LBJWC for additional instructor suggestions

 

 

Winter’s Arrival

                                                                  by Agnes Plutino

 

Winter finally arrived in Williamson County on Saturday, January 13th with flooding rains.  After a brief lull on Sunday, an icy mix set in.  It was enough to shut down most schools and many businesses until the following Thursday.

 

While all this was going on, I took time to sort thru papers, read a few gardening articles, cook up a bit of food to have on hand in case of a power outage, make sure I had fresh batteries in the radio and flashlight, and numerous other odds and ends.

 

The most fun I had was making sure the birds had food and fresh water.  I say it was fun but getting out in the cold is not my idea of fun.  What made it fun was watching the birds chow down.  I’ve been trying to take pictures thru the window of the birds at the feeder.  I’ve had varying degrees of success.  Using a digital camera makes the effort much easier.  If the photo does not come out I just delete it.  I definitely save money on film and developing.

 

This has been a perfect time to read through my gardening magazines and the one mail order catalog I still get.  I use the catalog from High Country Gardens in Santa Fe, New Mexico as a reference guide when I shop locally for new natives.  It is amazing what you can find in our own local native plant nurseries.  I’m not saying I’ve never bought a plant at one of the big boxes but I am saying that it is a rare occasion.

 

There are two gardening magazines that I rely on.  The first is Judy Barrett’s “Homegrown” and second is the “Texas Gardener” magazine.  Judy publishes out of her home in Taylor.  Her magazine is available either by subscription($15 a year and a sure way to receive it) or as a freebie at the nurseries that advertise in the magazine.  For more information go to the website at www.HomegrownTexas.com.  The Texas Gardener magazine is published in Waco and is available for $21.95 a year.  For more information go to www.texasgardener.com.  Both magazines are appropriate for the entire state of Texas.  It only makes sense to read material that is appropriate for the area in which we live.  I just found out at the January meeting that Judy Barrett will be our speaker at our February 8th meeting.  I am really looking forward to hearing what Judy has to say.

 

As I write this article I watch a Mockingbird successfully defend his territory.  He is so defensive that he even chased the other birds away from a nearby feeder.  He wasn’t using the feeder.  The feeder was just to close to his Chinese Pistasche (I know, it’s not native and I’m really hoping it doesn’t turn out to be invasive. I’d hate to cut it down) and the Yaupons and Possumhaws.  I set up feeders in other locations, which seems to be working.  All sorts of nice garden birds show up, especially in this nasty weather.  My favorites are chickadees, cardinals, and tiny little kinglets(Diane identified the little guy for me).  There are lots of sparrows, red-wing blackbirds, finches, a few doves, and other little guys that I have yet to identify.  I find it amazing how resourceful they are.

 

Before it got so chilly, I was wandering out in my prairie each day.  Although they are much harder to spot there, the birds are taking advantage of the tall grasses and the seed heads on the various prairie plants.  Whenever I am tempted to “tidy up” the garden this time of year I think of the critters out there and how they use all that litter as cover and food sources.  I know that soon enough it will be time to “tidy up”, but not yet.  Besides it gives me something to look at.  What I do enjoy doing is looking for and identifying the various rosettes of the native prairie plants that will give me beautiful bloom in the coming months.  From what I can see, the Bluebonnets should have a good year.  There are lots of rosettes, fairly small and fairly close to the ground.  Someone asked me recently about when to plant bluebonnet seed.  Although most experts recommend planting in September and October, which probably is good advice for a first time planting, I suggest flinging them where you want them as soon as they ripen and dry after their spring bloom.  Think about it.  This is what happens in nature.  Once they are

established, you can keep a nice display going year after year unless something such as the big perennials and large grasses move in to out compete them.  It depends on what you want.

 

I mentioned “tidying up” above.  By the time you read this it will be just about time to “tidy up” the garden.  As a rule of thumb I use February 15th as my start date.  It depends on how many plants are involved.  Woody perennials such as Salvias, Turk’s cap, Flame acanthus, etc. pretty much show you what needs cutting back.  Anything that is obviously dead.  A lot of plants will die down to the roots and need to be cut back hard.  Others just need a bit of tip pruning.  This is all information you gain by experience and talking to other gardeners.  One practice that I really have a hard time with is the cutting back of ornamental grasses.  I just don’t think it is necessary to whack them back so hard.  It’s one of those things the landscape maintenance folks got started and it is a hard habit to break.  What I like to do is “rake” out the ugly stuff with a stiff rake of some sort.  I use a stiff shrub rake.  On the smaller grasses I get down on the ground and use one of my hand cultivators as a rake.  Anything that “combs” or “rakes” will work.

 

I’m looking forward to the spring and hope you are too.

 

 

Featured Plant

 

Viguiera stenoloba

(Skeleton-leaf Goldeneye)

 

Photo: WFC

Viguiera stenoloba is a small evergreen shrub that grows in rocky, alkaline, fast draining soil.  It is locally abundant in dry desert or sub-desert areas in the Trans-Pecos and Rio Grande Plains and infrequent in the western part of the Edwards Plateau. This shrub can also be found in New Mexico and south and west to Durango, Coahuila, Nuevo Leon, and Tamaulipas counties in Mexico.  Average rainfall is 12-16“ a year or less.

 

V. stenoloba forms a much branched, mounding shrub with a moderate growth rate to 3 feet high and 2-3 feet wide.  The

leaves are dark green.  Lower leaves are skeletal (sharp deep lobes) and are up to 2.5” long and 1.5” wide.  Upper leaves tend to be linear.  The yellow 1-2” daisy like flowers appear singly at the end of stalks intermittently through the summer and heavily in the fall.  The center disk extends up to 1/3” above the petals.  The flowers are followed by a small (1/8”) dry one seeded achene.  Gather the achenes as they turn brown and begin to shatter.  Spread the achenes out to air dry then store in sealed container in the refrigerator until sowed.  To propagate, scatter seed directly on lightly raked ground in late fall or winter and water well.  You can also take 2-3” softwood cuttings after the first growth from April to June and again in August but cuttings are often difficult to get rooted.

 

This shrub is very drought tolerant.  Plant it in lean, very well drained, alkaline soil in full to part shade although it does best here in full sun.  In areas with clay soil, consider placing this shrub in a raised bed.  It also does well in a deep pot and at the top of sloped areas.  Although it is evergreen in its native range, it may loose some or all of its leaves here if the winter is severe but the roots will be fine as long as the soil is not wet.  This year, this plant has stayed evergreen to date even in north facing pots.  Once established, this shrub does not need supplemental irrigation although it can take some garden water as long as it quickly drains

Photo: WFC

through.  Fertilizer is generally not needed and it is recommended that a rock mulch be used.  Cutting off the spent blooms will promote the growth of new blooms.  The shrub can also be cut back by up to one half once a year if needed to reduce the size or to thicken the growth.

 

V. stenoloba leaves contain aromatic oils which discourage browsing by deer.  It is also a larval plant for some butterflies.  It is often used in perennial beds as well as a small shrub in front of larger shrubs or small trees.  Companion plants include those which thrive in the same well drained, alkaline areas.  Consider planting it with Mahonia trifoliolata (Agarita), Dasylirion species (Sotol), Dalea frutescens (Black dalea), and Penstemon species.  For more information on these plants, go to http://www.wildflower.org/.

 

This plant can be found at Barton Springs Nursery in Austin, Bloomers Garden Center in Elgin, Green and Growing in Pflugerville, Sweetbriar Nursery in Belton and The Natural Gardener in Austin.  McIntyres Nursery in Georgetown can readily get plants in several sizes for you and other local nurseries can also order this plant.  It is usually sold at the Lady Bird Johnson Wildflower Center in both the spring and fall plant sales.

 

References:

 

  1. Correll, Donovan Stewart and Marshall Conring Johnston, “Manual of the Vascular Plants of Texas,” Fourth Printing, University of Texas at Dallas, 1996.
  2. Nokes, Jill, “How to Grow Native Plants of Texas and the Southwest,” Revised and Updated Edition, University of Texas Press, 2001, ISBN 0-292-75574-0.
  3. Wasowski, Sally and Andy, “Native Texas Plants, Landscaping Region by Region,” Second Edition, Lone Star Books, 1998, ISBN 0-89123-077-7.
  4. http://www.wildflower.org/
  5. http://plants.usda.gov/
  6. http://aggiehorticulture.tamu.edu/ornamentals/nativeshrubs/viguierastenol.htm
  7. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067814

 

 

 

Planting Bed Design

 

The location, size, and design of the planting beds is dependent upon the selected landscape design style, the amount of time you wish to spend on the garden, the garden effects you are trying to achieve, and the budget for the change.  The planting bed should be harmonious and consistent with the overall landscape design and the plants in the bed should be consistent with the location and size of the bed.  A large bed next to the house can easily hold small trees and large shrubs as a background for shorter plantings whereas a bed in the center of the yard may have a small tree with a variety of smaller shrubs, perennials, and annuals.

 

In designing the planting bed, one needs to consider both repetition and contrast of plant shapes.  Repetition of forms pulls the garden together but too much repetition is boring.  Contrasting plant shapes provides focal points and relief from the sameness of repetition.  Combining spike plants with mounds provides both an upward relief and sharpness in contrast to the width and softness of the mounds.  Mist plants allow you to see other plants through a haze and provides for greater dimension in the planting bed.  Other shapes to consider are the fountain shaped plants including many of the grasses, spreading mats, globe shaped plants and straight upright or vase shaped plants.

 

Repetition can also be achieved by repeating hardscape (such as several trellises), flower and leaf color, and plant texture.  This does not mean that all plants are of the same color or texture, only that these characteristics are repeated throughout the bed.

 

Contrast is also achieved by placing plants next to hardscape (such as native boulders), incorporating different colors combinations and or groups, light against dark, and variations in textures.  Don't forget to include variations in leaf colors. Sometimes, the primary variation provided in a planting bed is in variation in leaf colors and textures.  A silver-leaf plant can be stunning next to one that has dark green foliage. 

 

Variations in texture can be achieved with both flowers and leaves.  Try combining the tubular flowers of salvias with the daisy like flowers of Symphyotrichum oblongifolium (fall aster) or the rose like flowers of Pavonia lasiopetala (Rock rose) or Calylophus serrulatus (Yellow evening primrose).  Plant leaves can vary in size, shape, and surface.  In part shade, try combining the large, fuzzy, heart shaped leaf of Allowissadula holosericea (Velvet-leaf mallow) with small, rough-bottom, toothed leaf Conoclinium greggii (Gregg's mistflower), and the small, shiny, smooth leaf Philadelphus texensis (Texas mock orange).  This combination also includes different colors of green in the foliage with the mallow medium green, mistflower, lime-green, and mock orange dark green and different flowers with the fuzzy mist flower contracting with simple flowers of both the mallow and mock orange.  Soft and smooth leaves and filmy flower and grass heads are fun to touch.  Note that texture can be added in other ways.  The bark of trees can be smooth, rough, peeling, etc.  Rocks and pebbles and wood used in the landscape can be rough or smooth.

 

Another consideration for the planting bed is the use of scented flowers especially next to sitting areas.  Be sure to include strongly scented night blooming flowers such as Datura wrightii (Jimson weed) next to evening entertainment areas.  D. wrightii has large white flowers which are easily seen during moonlit nights.

 

The typical bed viewed from one-side has taller plants at the back of a bed with progressively shorter plants in front.  However, a planting bed will look more natural if medium sized plants periodically weave their way to the front of the bed.  Many experts recommend that you mass enough of the same type and color of perennial or annual to produce single color drifts that are several feet long and a foot wide or clumps that are at least two to three feet around.  Be sure to include form and/or color focal point plants through out the planting bed.  For island beds, the only difference is that the taller plants will be in the center of the planting bed with smaller plants at the edges of the bed.

 

Planting beds can be designed for interest in all seasons.  Many trees, shrubs, and perennial plants flower in the mild spring months.  In early spring, new leaves open on winter dormant plants.  Frequently, these leaves are lighter green than the summer foliage or have red/pink tinges.  In the summer, many plants will go dormant unless they are given supplemental water.  However, there are a number of plants that do retain their foliage and there are some native flowering plants that bloom during this period.  If supplemental water is given, the foliage will be lush and provide an excellent background for the flowering plants.  In the autumn, there is another burst of bloom from many native plants.  Most of the clumping grasses form beautiful fluffy heads of seeds.  Later in the autumn, the leaves of many plants that are dormant in the winter will turn to magnificent colors of yellow, gold, orange, red, or burgundy.  These colors should be integrated into the landscape design.  In winter, good design incorporates much more than just evergreen plants.  Many dormant plants have interesting bark patterns or provide an interesting tracery of branches in front of a wall or evergreen background.  Some evergreen and dormant plants have bright berries and some dormant plants have interesting seeds and seed pods which will stay on the plant for extended periods.  Also, don't forget the wonderful look of dried grasses which will sway in the winds.  On the plan for the planting bed, you can note the season(s) of interest for the plant.  Because there is usually some space considerations, look for plants that provide multiple season interest or show the same plan for each season with the plant interest colored in.  However you approach planning, giving each season equal attention will provide an integrated look for all seasons.

 

In determining the plants to be used in the planting bed, be sure that all of the plants have the same cultural requirements including soil, sun, and water.  Many landscapes emphasize drought tolerant plants.  However, one can have a water wise garden and still have a planting bed of plants that require more water in one part of the garden.  Finally, be sure to take the final plant width into consideration when laying out the bed.  Although the plants may be small, they will need room to grow. Rather than placing the plants too close, fill the space between plants with annuals or mulch until the plants begin to grow out.

 

 

Texas Endemic Plants in

Williamson County

 

 

Texas has about 400 native plants that are endemic (only found within the state) (Ref. 16).  Most of these plants are found on the Edwards Plateau, the Big Bend area and the Rio Grande Plains.  However, a number of them are also found within Williamson County.  The following are the 27 endemic plants that have currently been identified as either being in or suspected of being in this county.  This list was developed using a combination of the endemic plant list (Ref. 4) developed by Bill Carr, a local botanist, in 2002 and by TAMU Flora of Texas Consortium project (Ref. 5) which documented an endemic plant list for the state and for each county in 1995.  Note that Bill Carr will be our program speaker this June.  The plants initially identified were checked with the Integrated Taxonomic Information System (Ref. 6) to assure that the current species name was identified and then that name was checked with the recently updated USDA Natural Resources Conservation Service (Ref. 7) range maps (state and county) to assure that the plant was still endemic to Texas and was probably within the county.

 

The following provides the plant list with characteristics and pictures where available.  Information provided on plant characteristics was obtained from References 1-3, and 7-10.  The basis for assuming a plant is within the county is also noted.  Most of the plant pictures were obtained from the Lady Bird Wildflower Center, designated as (WFC) after the picture, web site (Ref. 8).  Other pictures came from Texas A&M (TAMU – Ref 10 and 11), Winston Ranch (Winston ranch – Ref 13), University of Texas Native Plant course (UT- Ref. 12), University of North Carolina herbarium (UNC – Ref. 14) and the USDA Natural Resources Conservation Service (USDA – Ref. 7).

 

Note that the number of plants identified for Williamson County is significantly less than the number currently identified for Travis County.  Part of the reason is that there are a number of organizations in Travis County that are actively looking for native plants located within the county.  Range documentation requires a herbarium sample of the plant.  Even if the plant exists within the county, it is not noted unless a sample exists.  Reference 15 on the NPSOT Austin web site provides information on documenting such a sample.

 

No.

Family

Name

Characteristics

1

Acanthaceae

Ruellia drummondiana (Drummond’s wild petunia)

Perennial from short rhizome with many roots from the nodes to about 30” high. Dense covering of hairs. Egg shaped or elliptical dark green leaves up to 6” long and 3.5” wide. 2-7 lavender flowers to 1.5” long from summer to fall. Seed pods spring open as they dry; seed 0.2” in diameter. Found in wooded, riparian, often rocky areas.

2

Agavaceae

Yucca pallida (Pale yucca)

Note: not in latest USDA county distribution but in both Travis and Bell counties so included here. Originally included in Y. rupicola. Stemless evergreen perennial; forms loose colonies of 10-30 rosettes. Flexible sage-green or bluish-green leaf lance shaped 8-20” long and 0.4-1.75” wide. Pendent flowers pale green with white edges in an elongated cluster at the top of a 2-6’ stalk in spring. Erect seed capsules. Found in blackland prairies.

3

Agavaceae

Yucca rupicola (Twistleaf yucca)

Note: some place this plant in Yucca pallida. Evergreen perennial becoming an open clump of up to 15 leaf rosettes. Narrow, undulate, olive-green 1-2’ long, lance shaped leaves, 1-2’ long and 0.75-1.5” wide, twist as they age. Pendent flowers white, sometimes tinged purple, in an elongated cluster at the top of a 2.5-5’ stalk in spring. Seed capsule. Found on limestone ledges, grass-covered plains, and open woodlands.

4

Asteraceae

Brickellia dentata (Leafy brickellbush)

Upright shrub, much branched near the base to 40” high. Pale bark. Alternate lance shaped leaves 3/16-1.5” long, 1/8-1/2” wide. 13-20 pale green or yellow flowers in cluster at end of the stalk in late summer to fall. Single seed achene. Found in gravel of limestone streambeds.

5

Asteraceae

Silphium albiflorum (White rosinweed)

Taprooted, upright, hairly shrub16-40” high. Alternate, deeply lobed leaves up to 12” long and wide. Cluster of up to 2.5” wide flower heads in summer; 14-30 white ray flowers and 70-130 white disc flowers. Achene. Found on barren limestone knolls and prairies.

6

Brassicaceae

Lesquerella recurvata (Plateau bladderpod, gaslight bladderpod)

Annual, 8-20” high, sparsely haired, branched stems erect or sprawling. Coarsely toothed leaves up to 2” long. Cluster of 1/3-2/3” 4-petaled, yellow flowers at end of stalk in spring. Seeds about 1/16” long and wide. Found on limestone outcrops and gravelly calcareous Blackland prairies.

7

Campanulaceae

Triodanis coloradoensis (Colorado Venus’ looking-glass)

Upright, smooth annual, to 2-3’ high; solitary stem with a few branches in upper portion. Upper leaves inversely lance shaped to elliptical leaves to 2.75” long and 5/8” wide; lower leaves lance shaped to 1.5” long and 3/16” wide. Solitary, tubular, 5 petaled, blue to blue-violet edged, white throat flowers to ¾” long from upper leaf axils April-June. Linear-oblong capsule almost 1” long. Found on dry hillsides, bluffs, rocky ledges, woods, gravel bars, and floodplains.

8

Cistaceae

Lechea san-sabeana (San Saba pinweed)

Not on USDA distribution but shown in counties to directly east and west so included here. Perennial herb with aerial stems 6-14” high, Narrow linear leaves less than 3/32” wide. Small, 3/16-1/8” round, reddish flowers distantly spaced. 6 seeded capsule 1/16-3/32” long April-June. Found on roadsides, fields, and sandy open woods.

9

Commelinaceae

Tradescantia humilis (Texas spiderwort)

Spreading, heavily branched perennial herb with stout, fleshy roots, Small hairs on stems. Stiff, minutely haired, deep green tinged with rose leaves to 8” long and ¾” broad. Multiple 3-petaled, purple flowers at the end of the stems Mar-June. Capsules 1/4” long. Found on sandy or rocky ground.

10

Convolvulaceae

Dichondra recurvata (Tharp’s ponyfoot, Oakwoods ponyfoot)

Small, mat forming, sparsely haired, creeping perennial rooting at the nodes, 0.75-6.5” high. Leaves rounded heart shaped. Tiny solitary or paired, light green to white, funnel flowers on stem from leaf nodes March-May. 2-4 seeded fruit. Found on roadsides, gravelly or sandy open oak woods or creeksides.

11

Euphorbiaceae

Argythamnia simulans (Plateau silverbush)

Trailing perennial herb with few to many, weak, freely branching, stems up to 18” long. Elliptic to inversely lance shaped leaves 3/8-2” long and 3/16-9/16” wide. White to cream, male and female flowers grouped on stem, 5 petals/sepals lance shaped or ovate, April-October. Capsule. Found on dry, calcareous clay soil in grassland or scrub.

12

Euphorbiaceae

Euphorbia roemeriana (Roemer’s spurge)

Erect (decumbent in shade), tap rooted annual 4-12” high. Wedge shaped leaves 1/8-3/8” long and 1/32-3/16” broad. Minute flowers in tiny cluster surrounded by a cup like structure in spring. 10 male flowers, yellow to yellow-green consisting only of stamens; single female flower consists of a solitary pistil. Capsule about 1/8” thick. Locally abundant in calcareous soils and creek canyons.

13

Fabaceae

Astragalus crassicarpus var. berlandieri (Groundplum milkvetch)

Herbaceous perennial with stems arising singly or few together from slender, widely forking underground stem branches forming mats. 15-33 elliptical leaflets along a 1 3/8-6” leaf blade. Flowers with 5 purple, lilac or pink-purple petals to 1” long in spring. Plum like fruits. Found in soils derived from limestone or clay, gravelly areas and prairies.

14

Fabaceae

Astragalus pleianthus (Edwards Plateau milkvetch)

Not on USDA but shown in counties directly east, south and west so included here. Annual with erect to decumbent stems up to 14” long. 7-9 elliptical linear elliptical leaflets 3/32-9/16” long. Clusters of 4-10 pink to purplish pea like flowers in spring. Fruits. Calcareous soils, prairies, open woodlands.

15

Fabaceae

Astragalus wrightii (Wright’s milkvetch)

Erect, rigid, taprooted annual to 14” high. Long hairs on stems and leaves. Foliage silvery becoming greenish; 7-13 leaflets along a 5/8-2 3/16” leaf blade. 3-7 red-violet, lilac, or white with lavender ½” flower clusters in spring. Fruits ¼-1/2” long and 3/32-1/8” wide. Sandy or gravelly ground.

16

Fabaceae

Dalea tenuis (Pinkglobe prairieclover)

On TAMU but not on USDA; in Travis and Bell counties so included here. Subshrub with erect stems or stems arising at an angle. Widely branched. 3-5 linear leaflets 3/16-1/2” long. Flowers in cone-like spikes 3/8-1 3/16” long and ¼-3/8” thick; 5 purple-pink flower petals in June. Found on eroding limestone slopes.

17

Fabaceae

Pediomelum hypogaeum var. scaposum (Small Indian breadroot)

Perennial stemless herb to 10” high with dense white hairs. Palm like cluster of 3-7 (usually 5) elliptical leaflets 3-4 times long as wide (5/32-1/2”). Dense spike to 1” of 1/3-1/2” long 4-lobed lavender/purple flowers April to May. Fruit is ½-3/4” long with a firm tip. Found in calcareous hillsides.

18

Fabaceae

Pediomelum latestipulatum var. appressum (Texas Plains Indian breadroot)

Erect herb 6-14” high, typically with no lateral branches. Palm like cluster of 5-7 elliptical or egg shaped leaflets 25/32- 1 ¾” long and ¼-5/8” broad. Blue, lavender, or purple flowers 11/16-1” long grouped in a dense roundish cluster 1 3/8” long in March to April. Seed pod 3/8-1/2” long. Rocky or sandy prairies.

19

Fabaceae

Tephrosia lindheimeri (Lindheimer’s hoarypea)

Trailing stemmed perennial herb with woody crown and taproot. Several stems to 40” high. Stems and leaves densely haired. 5-15 elliptical leaflets, 1 ¼” long and up to 7/8” wide, along a 2-6” leaf blade. Numerous, loosely arranged elongated group of flowers at ends. 5 petaled rose-purple flowers ½” long April to September. Legume like seed pod 1 ½“ long and 1/3” broad. Mostly in sandy soils.

20

Lamiaceae

Salvia engelmannii (Engelmann’s sage)

Perennial herb from a woody taproot to about 16” high, hairy stems often forming dense clumps. Sticky to the touch linear reverse lance shaped leaves with smooth or somewhat toothed edges to 3 1/8” long and 3/8” wide. Spike of pale lavender violet flowers to 1” arranged in a spike, April to June. Found on limestone prairies, often in shallow soils, and limestone hills.

21

Liliaceae

Nolina lindheimeriana (Lindheimer’s nolina)

Evergreen perennial with a woody underground stem. Numberous flat, thin leaves 1-3’ long, with margins strongly serrulated with teeth. Open cluster of yellow green flowers at the end of a stout 2-6’ stem in spring. Seed capsules winged. Found on limestone hills of open woodlands and scrubland.

22

Polemoniaceae

Phlox pilosa subsp. latisepala (Rough phlox)

Erect herbaceous perennial to 18” high. Linear to lance shaped leaves up to 2 3/8” long and 1/3” broad. Numerous, fragrant, 5 petal, pink, rose, lavender, purple or sometimes white, 2/3” long flowers in open terminal cluster April to May. Single seed in each cell. Open woods on dry slopes, sometimes in grasslands, often over limestone.

23

Polemoniaceae

Phlox roemeriana (Golden-eye phlox)

Showy winter annual to 14” high. Lower leaves reverse lance shaped; upper leaves lance shaped. Leaves are up to 2” long and 3/8” wide and are covered with soft hairs and longer hairs on margin. Purple, pink or rarely white flowers with large yellow eye bordered in white and arranged in loose terminal clusters in spring. 3-5 seeds per cell. Found on dry rocky slopes and limestone barrens.

24

Rosaceae

Crataegus brazoria (Brazos hawthorn)

No USDA county distribution but on TAMU map. Tree with pale bark to 30” high and a trunk up to 6” in diameter. Slender zigzag branches, eventually with a sheen, some ending with a slender gray spine. Leaves oval to oblong with coarsely serrated margins, 1 ¾ - 2 ½” long and 1 3/16-1 9/16” wide; lustrous, dark yellow green above, pale with short hairs beneath. Few to many white 19/32” flowers with pink to rose anthers are arranged in a flat top flower cluster October to November. Sweet, edible, 5/16-19/32”, dull, dark red fruit. Found on stream bottoms or wooded hillsides and thickets.

25

Rosaceae

Prunus minutiflora (Texas almond, Smallflower peachbrush)

Low shrub with gray bark and irregular, often zigzag slightly spiny branches. Often forms a dense mass. Leathery blue gray leaves oblong-elliptical, 9/32-25-32” long and 3/16-5/16” wide. Male and female white flowers are on separate shrubs in spring. Inedible, pale brown to pink red, 1/3-1/2” fruit matures late spring/early summer. Found on limestone slopes, sandy brushy plains, ledges and in canyons..

26

Scrophulariaceae

Castilleja purpurea var. lindheimeri (Lindheimer’s Indian paintbrush)

Upright, densely hairy perennial 8-12” high. Leaves 1-2 pairs of divergent narrow lateral lobes, linear to lance shaped. Bracts yellow-orange to red, sometimes brown orange in cone shaped spike March to May. Calcareous gravelly, sandy or clay soils on hills and prairies. Seeds numerous.

27

Vitaceae

Parthenocissus heptaphylla (Sevenleaf creeper)

Not on USDA but shown in Travis and Bell counties so included here. Vine to 33’ with long forking tendrils. Usually 7 reverse lance shaped fleshy, thicken leaflets 1 3/16-2” long and about 25/32” wide, coarsely toothed on margins, glossy on upper surface, turning crimson in fall. Flat top 1 9/16- 3 1/8” cluster of pendulous green flowers April to May. Dark-blue to black berries to 3/8” in diameter. Found climbing over small trees and shrubs in rocky or sandy soils.

 

1.  Ruellia drummondiana (UT)

2.  Yucca pallida (WFC)

3.  Yucca rupicola (TAMU)

4.  Brickellia dentate (WFC)

5.  Silphium albiflorum (WFC)

6.  Lesquerella recurvata (WFC)

7.  Triodanis coloradoensis (Winston ranch)

8.  Lechea san-sabeana (TAMU)

9.  Tradescantia humilis (WFC)

No image available

10.  Dichondra recurvata (UNC)

11.  Argythamnia simulans

12.  Euphorbia roemeriana (UT)

No image available

No image available

13.  Astragalus crassicarpus var. berlandieri (WFC)

14.  Astragalus pleianthus

15.  Astragalus wrightii

16.  Dalea tenuis (USDA)

17.  Pediomelum hypogaeum var. scaposum (TAMU)

18.  Pediomelum latestipulatum var. appressum (WFC)

19.  Tephrosia lindheimeri (WFC)

20.  Salvia engelmannii (WFC)

21.  Nolina lindheimeriana (WFC)

No image available

22.  Phlox pilosa subsp. latisepala (WFC)

23.  Phlox roemeriana (WFC)

24.  Crataegus brazoria

25.  Prunus minutiflora (WFC)

26.  Castilleja purpurea var. lindheimeri (WFC)

27.  Parthenocissus heptaphylla (WFC)

 

References:

 

1.       Correll, Donovan Stewart and Marshall Conring Johnston, “Manual of the Vascular Plants of Texas,” University of Texas at Dallas, 4th printing, 1996.

2.       Diggs, Jr., George M., Barney L. Lipscomb, and Robert J. O’Kennon, “Shinners & Mahler’s Illustrated Flora of North Central Texas,” Botanical Research Institute (BRIT), 1999.

3.       Ajilvsgi, Geyata, “Wildflowers of Texas,” Shearer Publishing, Revised Edition, 2002.

4.       William R. Carr, “No Place But Texas: An Annotated List of Plant Taxa Endemic to the Long Star State,” The Nature Conservancy of Texas,2002, http://www.nature.org/wherewework/northamerica/states/texas/science/art6069.html

5.       “Vascular Plants Endemic to Texas,” Flora of Texas Consortium, Texas A&M University,1995, http://www.csdl.tamu.edu/FLORA/endemics/endemic1.htm

6.       Integrated Taxonomic Information System, http://www.itis.gov/

7.       USDA Natural Resources Conservation Service, http://plants.usda.gov/

8.       Lady Bird Johnson Wildflower Center (WFC), http://www.wildflower.org/

9.       Flora of North America, http://www.fna.org/FNA/

10.    Benny Simpson’s Texas Native Shrubs, http://aggie-horticulture.tamu.edu/ornamentals/nativeshrubs/

11.   TAMU image gallery, http://botany.cs.tamu.edu/FLORA/gallery1.htm

12.   University of Texas Native Plant course, http://www.bio.utexas.edu/courses/bio406d/

13.   Winston Ranch flora along the Sabinal 1, http://botany.cs.tamu.edu/FLORA/WINSTON/bsabinal1.htm

14.   University of North Carolina herbarium, http://www.herbarium.unc.edu/types.htm

15.   Travis County Flora Project Example for Herbarium Specimen Label, http://www.npsot.org/Austin/TravisCountyFlora/Specimen%20Label%20Example.doc

16.   Vegetation/Cover Types of Texas, http://www.lib.utexas.edu/geo/fieldguides/vegetationmap2.html

 

February Garden Guide

Propagation

* Plant perennial/annual seeds in greenhouse to mid-month

* Mid month begin hardening off seedlings

* Plant container trees, shrubs, vines outside

* End of month begin planting container perennials, ornamental grasses and ground covers outside

Fertilize

* Seedlings as required

* Add compost to established planting beds

* Root stimulator for new plants if desired

Water

* Newly planted or transplanted plants

* Potted plants

* Plants as required if weather dry

Pruning

* Mow buffalo grass if needed to reduce thatch if not done in January

* Finish deciduous shade trees and live oak trees

* Finish summer flowering/needle evergreen trees, shrubs and vines

* Finish cutting back or raking ornamental grasses and dormant perennials as desired

* Repair frost damaged plants

* Branches of spring flowering trees and shrubs to bring indoors for forcing into bloom

Disease/Pest Control

* Apply corn gluten as a pre-emergent to lawn and beds that will not be seeded every 6-8 weeks

* Use horticulture oil as required to control scale and other difficult insects

* Check for aphids, white flies, caterpillars, snails and slugs during mild weather; treat if desired

* Cut annual cool season weeds

* Pull perennial cool season weeds

Other

* Keep bed well mulched; pull back mulch from plants to allow water to evaporate if receive too much rain

* Protect new plants from hard freezes

* Check irrigation system if not used in winter

* Finalize spring bed planting plan

 

 

 

 

March Garden Guide

Propagation

* Finish hardening off seedlings

* Begin spring planting of seeds into ground

* Begin planting container annuals mid-month

* Begin planting hanging baskets and new outdoor pots mid-month

* Plant container perennials, ornamental grasses, trees, shrubs, vines and ground covers outside

* Divide ornamental grasses

Fertilize

* Seedlings as required

* Test soil, add amendments as required

* Add compost to established planting beds if not done in February

* Add compost/mulch to potted plants

* Add thin layer of compost to lawn at the end of the month

* Root stimulator for new plants if desired

* Fertilize all pond plants beginning end of month

Water

* Newly planted or transplanted plants

* Potted plants

* Begin supplemental water for non-drought tolerant plants and lawn as required

Pruning

* Begin lawn mowing as required if trim look desired

Disease/Pest Control

* Apply corn gluten as a pre-emergent to lawn and beds that will not be seeded if not done in February

* Check for aphids, scale, white flies, tripes, caterpillars, loopers, snails and slugs; treat if desired

* At end of month, begin checking for mildew, black and leaf spot, fire blight and other diseases; treat if needed

* Cut annual weeds; pull perennial weeds

Other

* Keep beds well mulched; pull back mulch from more tender plants to warm soil

* Stake leaning or falling plants if desired

* Protect new plants from hard freezes

* Grass roots are being re-established; don’t disturb roots by aerating or dethatching

 

 

 

 

Resource List

 

Garden Centers

 

Barton Springs Nursery

3601 Bee Caves Road

Austin, Texas 78746

512-328-6655

Bloomers Garden Center

507 HWY 95 North

Elgin, Texas 78621

512-281-2020

www.bloomerselgin.com

Forever Garden

6970 Williams Drive

Georgetown, Texas 78628

512-868-3373

www.ForeverGardens.com

Green and Growing

601 West Pecan Street

Pflugerville, Texas 78660

512-251-3262

McIntire’s Garden Center

303 Leander Road

Georgetown, Texas

512-863-8243

www.mcintiresgarden.com

Sunshine Landscape & Garden Center

2002 HWY 620 South

Austin, Texas 78734

512-263-5275

www.sunshineaustin.com

Sweet Briar Nursery

48-B FM 2271

Belton, Texas 76513

254-780-4233

www.vvm.com/~reid

The Natural Gardener

8648 Old Bee Cave Road

Austin, Texas 78735

512-288-6113

www.naturalgardeneraustin.com

 

 

Wholesale Nurseries

 

Hill Country Natives

308 Mesa Oaks Drive

Leander, Texas 78641

512-259-0253

www.hillcountrynatives.biz

Native Texas Nursery

16019 Milo Road

Austin, Texas 78725

512-276-9801

 

Seed Source

Wildflower Center

Native American Seed

127 North 16th Street

Junction, Texas 76849

1-800-728-4043

http://www.seedsource.com/

Lady Bird Johnson Wildflower Center

4801 La Crosse Avenue

Austin, Texas 78739

512-292-4200

www.wildflower.org

 

Web Sources

Native Plant Society of Texas

www.npsot.org/

Williamson County Chapter NPSOT

www.npsot.org/WilliamsonCounty/

Bennie Simpson Native Texas Trees

http://aggie-horticulture.tamu.edu/ornamentals/natives/

Bennie Simpson Native Texas Shrubs

http://aggie-horticulture.tamu.edu/ornamentals/nativeshrubs/

USDA Natural Resources Conservation Service

http://plants.usda.gov/

Noble Foundation Plant Image Gallery

www.noble.org/webapps/plantimagegallery/

Flora of North America

www.efloras.org/flora_page.aspx?flora_id=1

Integrated Taxonomic Information System

www.itis.gov/

 

Club Information

 

Club Meetings

2nd Thursday of each month at 7:00 PM

Williamson County Extension Office

3151 SE Inner Loop Road, Suite A

Georgetown, Texas

Website and email list: http://npsot.org/WilliamsonCounty/

 

Club Positions

 

Position

Name

Telephone

President

Phyllis Dolich

512-869-0356

Past President

Billye Adams

512-863-9636

Secretary

Kathryn LeBlanc

512-773-4573

Treasure

Kathy Galloway

512-259-7350

Program

Susan Waitz

512-793-3748

Field Trips

Marilyn Perz

512-864-3828

Membership

Kathy Mitchamore

512-259-0253

Volunteer Coordinator

Janet Church

512-585-0996

Historian

Agnes Plutino

512-863-0421

Heritage Gardens

Marilyn Perz

512-864-3828

Web Master

Jason Spangler, jasons@wumple.com

512-249-7868

Newsletter

Janice Charnley

512-863-7355

 

Membership Application

 

Name

 

Street Address

 

City

 

State

 

Zip Code

 

Phone

 

E-mail

 

New/Renewal

 

Address Change

 

Chapter

Williamson County

 

Dues (Effective 4/1/06)

Send application and check to:

·         Student

$15.00

 

NPSOT State Office

PO Box 3017

Fredericksburg, TX 78624

830-997-9272

·         Senior (Age 65)

$20.00

·         Senior Couples

$30.00

·         Individual

$25.00

·         Couple/Family

$40.00