More Information About Rehmannia
Rehmannia is a small genus of 6 species from China that are related to antirrhinum (snapdragon) and buddleia. The common name "Chinese foxglove" gives you a good picture of what rehmannia flowers look like.
Rehmannia is a deciduous herbaceous perennial with a basal tuft of leaves and a 2-3' tall central flower stalk. Lining the rehmannia flower stalks are foxglove-like, trumpet-shaped flowers that are generally pink with a red-spotted, yellow throat. Rehmannia produces flowers continuously over a long period of time from spring to fall. In places with really hot summers, Rehmannia may rest for a while during the dog days and resume flowering when cooler temperatures arrive.
Rehmannia plants can tolerate a wide variety of conditions, from moist to dry, and full sun to part shade but they perform best with consistent moisture and well-drained soil. Rehmannia also prefers recently loosened soils as they tend to decline in soils that have not been disturbed. Rehmannia is a great pass-along plant because it spreads easily on rhizomes to form a colony that can be divided and shared with your friends. When you're ready to buy rehmannia for your perennial garden, we hope you'll check out our online listing of rehmannia for sale.