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Boerne Chapter

Early fall is “springtime” in the Chisos Mts of Big Bend

Author: Bill Ward

September is our favorite time to go to Big Bend National Park, because the crowds are gone and the mountain wildflowers are in full bloom. This year was no exception. In fact, all of Big Bend Park was greener than we ever remember seeing it. Plenty of summer rain fell out there.

Image of a twisting tree branches
Blooming mountain sage under Texas madrone trees in the Chisos Mountains. (photo by Bill Ward)

Up in the forests of the Chisos Mountains right now, my favorite Big Bend salvia, the mountain sage, is brightening up the understory. Its orangish-red flowers seem to glow in the subdued light of the mountain woods. This is the same “mountain sage” that has become so popular in the local nursery trade in the last several years. In the Chisos, this salvia looks especially good blooming among the red-brown trunks and limbs of the Texas madrone. This is such a complementary pairing of plants that I tried it in our yard. It works.

Many of the madrone trees in the Chisos are loaded with red fruit this fall. Birds were flying in to feast, and I would guess many small mammals visited those trees when we weren’t around.

Close up of a red cluster of elongated blooms
Closeup of mountain sage blooms. (photo by Bill Ward)

Other red wildflowers blooming in the Chisos Mountains in early fall are scarlet bouvardia or trompetilla, skyrocket, a red penstemon, and the eye-catching mountain catchfly.

Yellow or golden flowers include abundant goldenrod, the last of the damianita blooms, globemallow, mountain mahogany, and several composites.

White blossoms are Wright thoroughwort, beebrush, old man’s beard, and two or three shrubs we couldn’t identify. Two other salvias, canyon sage and Arizona sage, have blue flowers.

Landscape photo looking up hill at large stone outcrops and trees covered in red blooms
Texas madrones loaded with berries. (photo by Bill Ward)

There are many, many others, too. It is like springtime in those mountains, both with respect to flowers and temperature.

Down off the mountains and toward the Rio Grande, it is hotter with far less wildflowers. However, expanses of blooming cenizo bushes do cast a pretty purple haze over several patches of the landscape, at least for a few days.

While we were walking up a dry wash toward Burro Mesa Pour-off, I recognized a lot of shrubs and small trees which also are familiar to our part of the Hill Country. I thought to myself, “If these plants can survive in this desert, maybe they are the very Hill Country species we should be planting in our yards now, in preparation for the hotter and drier terrain the climatologists predict for our future.”

Bright, red flower in a starburst shape
Mountain catchfly growing with ferns in the high country of Big Bend Park. (photo by Bill Ward)

Growing along the low banks of that arroyo are several plants common to the eastern Edwards Plateau, such as evergreen sumac, aromatic sumac, little-leaf sumac, Texas persimmon, Mexican buckeye, golden ball lead-tree, and old man’s beard. Among the many plants less common to our part of the Hill Country are esperanza, guayacan, desert willow, spiny hackberry, ocotillo, candelilla, and various cactuses, agaves, sotols, and yuccas.

That’s a lot of very drought-tolerant plants that would make good shrubbery for Hill Country yards of the future. Maybe we don’t have to start thinking about Tucson vegetation just yet! Big Bend flora might get us by for a long time.

About the Region

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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