Annual Symposia

Since its inception the Society has held an annual gathering or members’ meeting. In 1991 the Native Plant Society of Texas initiated an educational project designed to explore the ecology of the many vegetation regions of Texas, through a series of symposia undertaken in conjunction with its annual members’ meeting. Every spring and fall the meeting convenes in a different region which will be the focus of that year’s symposium. Field trips, workshops and exhibits complement the presentations. While the symposium may be of special interest to our members, it is open to the public. 

The Society also holds a Spring Symposium in conjunction with Lady Bird Johnson Wildflower Center.

In some years the Society has published Symposium Proceedings which collect many of the presentations from the symposium and are linked below.

NPSOT LogoMark your calendars for the upcoming Native Plant Society of Texas Fall Symposium on October, 10-13, 2024 in New Braunfels, Texas.

Get more information and secure your lodging here.


2024Spring SymposiumAustinHybridArchives
2021Celebrating Conservation & CommunityVirtualVirtualArchives
2020Fortieth Anniversary Virtual CelebrationVirtualVirtualArchives
2019Conserving Native Plants in the Texas Coastal PrairieLeague CityArchives
2018South Central TexasSan AntonioArchives
2017Challenges of the Pineywoods: Fire, Biodiversity and FragmentationHuntsvilleArchives
2016Conservation and Climate ChangeGlen RoseArchives
2015Capit-O-lize on Natives: Contributions, Challenges, ConservationAustinArchivesProceedings
2014Four CornersTexarkanaArchivesProceedings
2013South Texas – Beach to Brush CountryCorpus ChristiArchivesProceedings
2012Texas Hill Country — a Changing LandscapeKerrvilleArchivesProceedings
2011Coastal Prairies and MarshesHoustonArchivesProceedings
2010Thirtieth Anniversary CelebrationDentonArchives
2009People, Prairies: PartnersWichita FallsArchives
2008The Big ThicketJasperArchives
2007Texas PrairiesGeorgetownArchivesProceedings
2006Convergence and Diversity: Native Plants of South Central TexasSan Antonio
2005Trans PecosBig Bend Area
2004Piney WoodsLongview
2003Edwards PlateauFredericksburg
2002Special HabitatsHouston
2001Dawn of the 21st Century: The Texas Biome and all its HabitatsAustin
2000Cross Timbers, Grand Prairies and the Red River AreaDenton
1999The Lower Rio Grande ValleyHarlingen
1998Llano Estacado and CanyonlandsAmarillo
1997Rio Grande Plains (Brushland)Uvalde
1996Chihuahuan DesertEl Paso
1995Tallgrass PrairiesWaco
1994Coastal Wetlands and EstuariesCorpus ChristiProceedings
1993Midgrass-Shortgrass PrairiesSan Angelo
1992East Texas TimberlandsNacogdoches
1991Edwards PlateauKerrvilleProceedings
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About the Region

New Braunfels, the location of our Fall 2024 Symposium, straddles both the Edwards Plateau Ecoregion and the Blackland Prairie ecoregion. Interstate 35 divides the city of New Braunfels; its path through the city closely parallels the boundary of these two ecoregions, with the Edwards Plateau on the west side and the Blackland Prairies region to the east. 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