Boerne Chapter

Letting Nature Do The Work

By Delmar Cain

The rains that were supposed to come in April finally arrived in May. The early blooming wild flowers have extended their blooming period and the Central Texas leaf katydids have staked out a spot on every oak limb that has a leaf.

Pink and blue wildflowers
Texas Bluebonnets, pink evening primrose and peppergrass in the courtyard.

But as the old English proverb noted, it is an ill wind that blows no one good. On our morning walks my lab Lucy has found that the wandering katydids taste just fine. As a matter of fact the katydids, which have a bit of mobility, seem to be just as tasty as the giant walking sticks, which are no challenge at all. My other lab, Sam, is tempted by neither katydids nor giant walking sticks, but sagely withholds all judgment on matters of taste.

The apparent end to the La Niña and the welcome rains this spring have given me a taste of something that I want to expand. With more than a little delight, I have watched an early display of bluebonnets and pink evening primrose be followed by an equally cheerful display of yellow coreopsis in a small courtyard area adjoining our house. And best of all I didn’t plant any of them.

Okay, I did scatter some bluebonnet seeds last year from some plants on another terrace and I did spread some of the seeds of the coreopsis that had volunteered in the courtyard. But the pink evening primroses are strictly volunteers along with the thoroughwort and the peppergrass.

Yellow flower
Coreopsis, golden-wave, or tickseed goldenmane.

Coreopsis or golden-wave (Coreopsis basalis) is a favorite of mine. It is an annual native, generally associated with sandy soil, and is found in prairies, plains, meadows and pastures throughout the South. It is not hard to find along the county and state highways in the Hill Country. However, the ones in our courtyard are firmly established, reseeding each year in the crushed granite installed as part of our driveway.

Coreopsis, also known as goldenmane tickseed, has low water needs and can grow in full sun. Last year we did not have many plants in the courtyard, because of the drought. But I don’t hold that against the coreopsis. In fact I credit it with good judgment in not showing up if there was to be no rain. I could have missed most of the year myself.

Mound of yellow flowers
Coreopsis in the courtyard.

The Texas bluebonnet is a winter annual and has a normal bloom time of March to May. Pink evening primrose prefers moist soil and blooms from March to July, although this year the plants in our courtyard have faded. Coreopsis blooms from April until June. If I can find a plant that blooms from June to October, I will have flowers in the courtyard all year long with no planting. I would also have a source of seeds to use in other places.

But finding another plant is not as easy as it may seem. I also have deer and an occasional axis that wander around, just when the plants mature. I have a few common sunflowers that have popped up in a few places. They generally bloom from May to October if left alone. Unfortunately, the only parts that are left when the deer leave are the leafless stems. I doubt that I will see one yellow flower this year.

Two plants, one a perennial and the other an annual, are candidates. Cowpen daisy (Verbesina enceloides) is an annual that the deer leave alone for the most part. It has a big yellow flower and blooms from April to October. It has lots of seeds, grows mainly on disturbed soils but can reach a height of 4 feet. That is a bit tall for this area.

Yellow flowers
Navajo Tea.

The other plant, Navajo tea (Thelesperma simplicifolium), forms colonies in dry outcrops throughout the Hill Country. Its yellow bloom is similar in appearance to coreopsis, but lacks the dark maroon center. I see it along the roadways and the deer seem to leave it alone. Maybe I can get it to grow in the courtyard.

But why restrict this idea to the courtyard? Think big. Why not plan the whole yard in the same way? What an encouraging thought. Native plants that return year after year with minimal or no mowing and flowers from March to October. That sounds like a winner to me.

If this plan sounds like something that you can use in your yard just try it in one part and see if it works. Of course you might have a neighbor that finds it downright distasteful. If so, you might remind them of that old Roman maxim that says “de gustibus non disputandum est”. That translates “in matters of taste, there can be no disputes.” My old lab, Sam, would agree.

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