Big Bend Chapter

Resources

Gardener's Guide

In addition to useful information from outside sources, we invite you to open our Gardener’s Guide. Lots of info just for gardeners in the Trans-Pecos – available nowhere else!

Trees of Sul Ross State University, Alpine, Texas

Sul Ross State University campus is an oasis in the Chihuahuan Desert region. Over 40 species of native and nonnative trees can be found there. Download this list of trees on the Sul Ross campus and go on a tree treasure hunt!

1. Choose the “right tree” – trees that are native to and well-adapted to our
desert environment (drought tolerant and ability to thrive in harsh conditions).

2. Prepare the Soil
a. dig a hole just slightly larger than the root ball
b. loosen soil at the bottom and sides of the hole to encourage root growth
c. fill the hole with water and let it drain out before you plant
d. mix about 1/2 bag of compost to the native soil that will be returned to
the hole – compost helps the tree establish its root system
e. add “Osmocote controlled release” fertilizer to the hole before planting
(see product directions – 1 to 2 cap fulls).

3. Planting
a. carefully remove a tree from its container without disturbing the root ball
b. remove any circling or girdling roots that may restrict growth
c. carefully place the tree in the hole – rotate the root ball of larger trees
and gently slide the root ball into the hole
d. ensure the top of the root ball is level with or slightly above the
surrounding soil
e. fill the hole with the native soil mixed with compost, avoid compaction.

4. Watering
a. to contain water, construct a 3-4 inch high circular wall of soil around
the tree trunk that is greater than the diameter of the root ball
b. water the newly planted tree immediately and thoroughly
c. add 1/4 teaspoon “SUPERthrive Vitamin Solution” per gallon of water to
promote initial root growth (see product directions)
d. minimize water loss by using a soaker hose or drip irrigation to deliver
water directly to the root zone
e. water infrequently, allowing the soil to dry out between waterings.

5. Mulching and Protection
a. apply a layer of organic mulch (pine bark, cedar mulch) around the
base of the tree, not touching the tree’s trunk, to help retain moisture
and suppress weeds
b. protect the tree from harsh desert conditions – strong winds and intense
sunlight (such as shade cloth and temporary support).

Grasses

Our thanks to Mountain States Wholesale Nurseries near Phoenix, one of our wholesalers, for sending this info on five grass species that work well in the Trans Pecos.

We have tried selling grasses at a couple of our past plant sales, but have never had much interest. They are beautiful, they are easy, they take minimal care, they hold the soil in place like no other plant and they are inexpensive to buy and maintain. What’s not to like?

If you find, after reading this, that you would like to buy grasses at our plant sales, please let me know via our Chapter email address.

Click on the photos below to find useful information to make each grass a success in your landscape.

Muhlenbergia Emersleyi El Toro (Bull Grass)
Calamagrostis X Acutiflora ‘Karl Foerster’ (Feather Reed Grass)
Bouteloua Curtipendula (Sideoats Grama)
Picture of Bouteloua Curtipendula (Sideoats Grama)
Bouteloua Gracilis (Blue Grama)
Picture of Bouteloua Gracilis ‘Blonde Ambition’ (PP22048)
Bouteloua Gracilis ‘Blonde Ambition’ (PP22048)

About the Region

Fall Symposium 2025 Logo - Teach for the Future

Salado, the location of our Fall 2025 Symposium, lies at the intersection of two ecoregions: the Edwards Plateau (Limestone Cut Plain) and Blackland Prairie (Northern Blackland Prairie).

The Edwards Plateau area is also called the Hill Country; however, this general term covers a much larger area extending farther north. Spring-fed creeks are found throughout the region; deep limestone canyons, rivers, and lakes (reservoirs) are common. Ashe juniper is perhaps the most common woody species found throughout the region. Additional woody species include various species of oak, with live oak (Quercus fusiformis) being the most common. Sycamores (Platanus occidentalis) and bald cypress (Taxodium distichum) border waterways. This area is well known for its spring wildflower displays, though they may be viewed in spring, late summer, and fall, as well. According to Texas Parks and Wildlife, average annual rainfall in the Edwards Plateau ranges from 15 to 34 inches.

The Blackland Prairie extends from the Red River south to San Antonio, bordered on the west by the Edwards Plateau and the Cross Timbers, and on the east by the Post Oak Savannah. Annual rainfall averages 30 to 40 inches, with higher averages to the east. This region is dominated by prairie species. The most common grass species include little bluestem (Schizachyrium scoparium) and Indian grass (Sorghastrum nutans) in the uplands and switchgrass (Panicum virgatum) in the riparian areas and drainages. Common herbaceous flowering plants include salvias, penstemons, and silphiums. This area has suffered greatly from overgrazing and agricultural use. Few intact areas remain, though many of the plants can be found along county roadsides throughout the region.

Our four host chapters (New Braunfels, Lindheimer, Guadalupe, and the Hill Country chapters) are located in one or both of the ecoregions above. However, the eastern portion of Guadalupe County also falls within the Post Oak Savanna ecoregion. Annual rainfall averages 35 to 45 inches, with higher averages to the east. A wide variety of hardwood trees are found, including several species of oaks, elms, and in the Bastrop area, loblolly pine (Pinus taeda). Grasses and forbs dominate in the open savannas, with most common grass being little bluestem. Ranching, agriculture, and fire suppression have allowed woody species to encroach on the once-open savannas.

Source: Wildflowers of Texas by Michael Eason