Foxglove is a striking ornamental flower; tall with colors in a wide range. Foxglove is also a source of digitalis used to treat heart problems. Digitalis was introduced as a medicinal plant by William Withering in 1758. The field of digitalis heart therapy is based on his work.The problem with using this plant drug is the full therapeutic dose is very close to that where toxic effects develop. It is not safe to use foxglove as a home remedy. But you should know about it, especially if you have it growing in your flower bed.