Foxglove, Digitalis purpurea
By H. Zell [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
By Yann [CC BY-SA 4.0-3.0-2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/4.0-3.0-2.5-2.0-1.0)], via Wikimedia Commons
By H. Zell [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Medicinal Garden information:
Foxglove also referred to as digitalis is used to treat congestive heart failure. It can increase blood flow throughout the body and reduce swelling in hands and ankles. The medicinal drug derived from foxglove is digoxin.
Taking digitalis orally is effective for treating congestive heart failure and related edema; contains various cardiac glycosides
Reference link Reference link 2