Opening/Closure Status

The grounds of the USBG will be closed September 18, 2021. On other days, all outdoor gardens are currently open. The Conservatory and public restrooms remain closed, due to the closure of the U.S. Capitol campus buildings. Please monitor www.USBG.gov for updates on operating status. USBG resources can be accessed online, including educational materials, virtual tours, and online programs by visiting www.USBG.gov/AtHome.

Cumberland false rosemary

Cumberland false rosemary (Conradina verticillata)
Plant Botanical Name: 
Conradina verticillata

Conradina verticillata closely resembles culinary rosemary, but it is a species native to the southeastern United States and is increasingly threatened in the wild. Also known as Cumberland false rosemary, its few remaining populations in Kentucky and Tennessee are often trampled by hikers and nature lovers. Additional threats include development, mining, and illegal collecting. In its native habitat of well-drained sandbars and riverbanks, this plant is often associated with Chionathus, Itea, Marshallia grandiflora, Ropogon gerardii, and Aster linarifolius. Although federally listed, it relatively easy to cultivate and a wonderful native plant for southern rock gardens, as are its companions in nature.