Opening/Closure Status

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 rosemary

Conradina verticilata
Plant Botanical Name: 
Conradina verticillata
USBG Plant Location: 
Not in Bloom
Conservatory Room Location: 
Rare and Endangered Species
Sunlight: 
Full sun to slight shade.
Plant Soil Type: 
Well drained deep sandy soil with little organic matter
Plant Moisture Requirements: 
Low water requirements
Plant Threat Level: 
Threatened

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 South Carolina, Kentucky and Tennessee are found in well-draned sand along stream banks and sandbars. Unfortunately, these are being trampled by hikers and nature lovers. Additional threats include development, mining and illegal collecting. Although federally listed, it is relatively easy to cultivate and a wonderful native plant for southern rock gardens, along with its natural companions, Chionathus, Itea, Marshallia grandiflora, Ropogon gerardii and Aster linarifolius.