Hyacinth Bean. Purpureus has been cultivated in india as early as 2500 bc. The bright green pointed leaves grow in leaflets of three leaves.

Because of this the hyacinth bean is also known as jefferson bean. Due to seed availability of one forage cultivar cv. Purple hyacinth bean is a very vigorous grower and the vines are a popular choice for a quick cover although they can frustrate you by refusing to flower until late in the season.
Hyacinth bean graces the garden with glowing shades of purple lilac and rose all season long.
Thomas jefferson s favorite nurseryman bernard mcmahon sold hyacinth bean vine plants to jefferson in 1804. It belongs to the family fabaceae leguminosae. The seeds are used as medicine. Thomas jefferson s favorite nurseryman bernard mcmahon sold hyacinth bean vine plants to jefferson in 1804.