Austin Chapter

Field Trip: Plant Walk and Lunch at Dowel Ranch – Members Only, April 8, 9am-12pm

NPSOT Austin and the Native Prairies Association of Texas  are co-hosting a plant walk on its 150 acre Dowell Ranch property.  We will gather for lunch after the walk. Please bring a bag lunch and we will provide beverages.

On June 30, 2021 the Estate of Caroline Dowell donated the 150-acre Dowell Ranch to NPAT. The donation of land came with an endowment that will enable NPAT to steward the property and begin restoration work. The ranch house now serves as our main office—an added bonus.  In October 2021, a conservation easement, held by the City of Austin Wildlands Department was placed on the ranch. This property will remain in its natural state in perpetuity. Being part of the Onion Creek watershed, puts it close to the City’s water quality protection lands.

There are multiple pastures, a woodland outcrop, a spring, ponds, one of the oldest monitoring wells for the Edwards Aquifer, and lots of structures. There is an old ranch house named the Bird House, after the former owners. The soils vary from Hill Country limestone to clay-based, dark soils. The history of this corner of deep south Austin is interesting, with open space disappearing quickly to development.

This property will be used for education and research, with a focus on restoration.  Projects include pocket prairies, increasing plant diversity, native plant gardens, woodland and wetland restoration, as well as plant and animal surveys to document changes over time.

For more information and to RSVP, contact Kirsti Harms.

About the Region

2026 Fall Symposium Logo

This low-elevations region of Texas extends inland from the barrier islands, about 60 or so miles, and stretches from Brownsville to Louisiana. In total, it covers about 9.5 million acres, with a high point of 150 feet in elevation. More than 1000 species of plants can be found in this region. On the southern end, species more common in Mexico (such as Sabal mexicana) and Central America occur.

The barrier islands provide us with dune systems, and clay flats to the inland side, which have species found in these areas alone. Many plants here, such as Ipomoea pes-caprae (beach morning glory), can be found throughout tropical regions of the globe. I’ve encountered the same species on the beaches of Guam.

Once inland, vast marshes and wet prairies occur. Occasionally, oak (Quercus fusiformis) groves can be found. Common grasses include species of Bothriochloa, Paspalum, and Sporobolus; eastern gamagrass (Tripsacum dactyloides); and switchgrass (Panicum species). Many rivers and creeks cut through the Gulf Prairies, and along these riparian areas various species of trees, Sabal minor, and other plants adapted to clay soils can be found. Due to overgrazing, farming, and fire suppression, woody species such as mesquite (Prosopis glandulosa) and huisache (Acacia farnesiana), and invasive species such as chinaberry (Melia azedarach), Brazilian pepper (Schinus terebinthifolius), and Chinese tallow (Sapium sebiferum) have increased and displaced our native flora.

Source: Wildflowers of Texas by Michael Eason