Future of Benny Simpson research plots

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Representatives of the Native Plant Society of Texas met recently with Texas AgriLIFE Extension representatives to discuss a  partnership under which the Society would undertake to clean up the site  of the Benny J Simpson Native Plant Collection  and provide oversight and funding for the collection in the future.

Benny J Simpson (photo Texas A&M)
Benny J Simpson (photo Texas A&M)

The collection occupies 6 to 10 acres at the Texas AgriLIFE Urban Solutions Center and includes more than 345 native trees and shrubs collected  by Simpson, a founding member and former president of the Society and a horticulturist for 42 years with the Texas A&M Research and Extension Center in Dallas.  The plants underwent trials to determine which would survive in the soils of the blackland prairie.  The collection, which is not currently maintained, contains some one-of-a-kind species.

Allen Jones, Director of Development at the Center, said that work will begin in the spring of 2010 for an Urban Living Laboratory at the campus. The earth-moving required for that construction lends immediacy to finding a group willing to commit funds and people to the collection. Other non-profits have been contacted to take ownership of other parcels of the campus.

Texas AgriLIFE staff estimate that as much as $500,000 might be needed for development of the collection and that an endowment would be the best solution for on-going maintenance. The money would be expended on trails and on a structure for education at the site. In-kind donations for trails and structural materials  could lower costs.  Sources of grant money could be identified by AgriLIFE staff thus easing the burden on the Society to locate the funds.

A view of the collection (photo by Carol Feldman)
A view of the collection (photo by Carol Feldman)

Man-hours required for cleanup have not been estimated.  Some of the plots are empty because the plants did not survive.  Others have replicated species that may need to be moved or removed entirely.  Some plots have rare species that definitely need to be identified and tagged for preservation.

President Gailon Hardin expects to present the proposal at the Annual Symposium in Wichita Falls.  In the meantime November 7 has been set as a tentative date to begin cleanup.

Benny Simpson began working at the center in 1954 when it was the Texas Research Foundation, a private agricultural organization. In 1972 Texas A&M took over operation of the center. His chief responsibility was managing studies of cotton root rot, but the passion for native plants and the native landscape he had since his days as a boy on a ranch on the Rolling Plains began to take shape.  On his own he began to collect native plants and find leftover plots at the Center to test how they would perform in conditions outside their normal range.  At the time Texas A&M did not see the value in studying native plants, so he had to defend his work from being plowed under each season.

His research led to about a dozen formerly wild species of native plants being introduced into commercial production, including two desert willows, a mountain sage, and five varieties of cenizo or Texas Sage, including the popular ‘Green Cloud.’

Plants from his collection were donated to Heard Museum in McKinney and also to Texas Discovery Gardens in Fair Park.

Authors Sally Wasowski and Jill Nokes have both acknowledged the contributions and encouragement Simpson made to their work.   He is the author of A Field Guide to Texas Trees, published in 1990 by Texas Monthly Press, and donated royalties from the book to the Society.  He passed away in 1997.

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**ARCHIVED POST AUTHOR: Bill Hopkins

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