Garden Closed

The United States Botanic Garden (USBG) is temporarily closed to the public to reduce the risk of transmitting COVID-19 coronavirus.

Whenever possible, the USBG will reschedule public programs and events originally scheduled during the closure period. Please monitor the USBG website for updates to operating status. Many resources can still be accessed online, including educational worksheets and manuals, fact sheets and more, and some of our programs will also be made available online. Find online resources at

Cumberland rosemary

Conradina verticilata
Plant Botanical Name: 
Conradina verticillata
USBG Plant Location: 
Not in Bloom
Conservatory Room Location: 
Rare and Endangered Species
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: 

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.