Highland Lakes Chapter

Native Plant Week – Native Plant Sale and Urban Forest Presentation 

Celebrate Native Plant Week at the Native Plant Society of Texas Fall Native Plant sale Saturday, October 28, 9:00 am on the Burnet Courthouse Square.  Locally grown native trees, shrubs and plants will be available. Experienced gardeners will be on hand to answer questions on choosing the right native plant for one’s landscaping goals.

In addition to expert plant advice, a “Natives in the Urban Forest” presentation will be delivered by Dr. Valdez Barillas, Associate Professor of Biology at A&M-San Antonio at 10:30 am in the library on the Burnet Courthouse Square. Professor Barillas’ talk will include:

1. How a changing climate is showing us the importance of trees and native plants in urban areas.

2. How to develop a landscaping plan which integrates soil characteristics and native trees to form a healthy plant and tree community and canopy.

3. How planting an urban forest helps clean our air and water while cooling our towns and cities.

Dr. Valdez Barillas earned his Masters and Ph.D. in Rangeland Ecology at Colorado State University.  He has recently established a Field Ecology Laboratory that supports undergraduate and graduate research. His research involves collaborative work with Texas Parks and Wildlife on the ecology of plant-insect-microbes interactions in native versus non-native invasive plants.

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 fall Symposium host chapter, the Tonkawa Chapter, includes both of these ecoregions.

Source: Wildflowers of Texas by Michael Eason