Garden Closed

Due to the closure of the U.S. Capitol Campus to the public, the U.S. Botanic Garden continues to have altered operations.  Bartholdi Fountain and Gardens and the Terrace Gardens are open while the Conservatory and gated outdoor gardens are temporarily closed. Please monitor for updates on operating status. Many resources can be accessed online, including educational materials, virtual tours, and online programs. Connect with resources from home at

Winkler’s gaillardia

Winkler’s gaillardia (Gaillardia aestivalisvar. Winkleri)
Plant Botanical Name: 
Gaillardia aestivalis
Plant Sub Species or Variety: 
var. winkleri

Known commonly as Winkler's gaillardia, these plants are found in only one county in eastern Texas. This endangered species is extremely well-adapted to the dry conditions of its native habitat, the sandhills of the east Texas pineywoods, and could prove to be a wonderful garden plant. Development and fire suppression have threatened the survival of this endemic and rare species. Currently there are efforts to protect remaining habitat and to study the effects of periodic controlled burning on threatened plant populations there.