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Native Plant Society of Texas

Peter Loos

Originally from NY have been in Texas almost all my adult life having come to Texas after serving in the US Army. Received BS and MS degrees at Stephen F Austin State University focusing on native plant horticulture and botany. My employment has included working at Lowery Nursery, Will Fleming Landscaping, City of Houston Parks and Recreation ( as urban forester), and since 1991 owner/operator of Ecovirons which has conducted private and commercial landscaping, Nursery operations, wetland mitigation/creation, and more recently seed collecting/harvesting for both the private and public sector as well as botanical surveys on both private and public lands.

Contact Peter Loos

Nacogdoches, TX, USA

NPSOT (1998 State President, lifetime and founding member), LNPS (40 year member, served as a at-large State officer numerous times), MNPS life member, Friends of the Louisiana State Arboretum VP. Numerous other affiliations in the past to include past Director of The Cullowhee Native Plant conference, former and founding member of the Friends of the SFASU Gardens, as well as others in my past.

  • Consideration: Open to Discussion
  • Driving Distance: 100 miles
  • Online Presentation: No
  • Recording Allowed: Discuss with Speaker
  • Uploading Allowed: Discuss with Speaker

Presentations Offered:

Numerous titles on numerous topics about native Texas plants

Presentations I present include Native plant ID, garden utilization, propagation, presentations covering specific habitats ( such as bogs, Longleaf Pine Savannahs, Barrens, Prairies, as well as others), Rare and uncommon […]

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