Delicate foliage and dangling blue flowers with yellow cores make blue pea vine a popular herbaceous plant. A tender perennial vine that grows rapidly, it is often grown as an annual in gardens both in and out of the tropics. The exact origin of this species is debated as it is widespread in equatorial regions.
The leaves are compound, made up of five to seven small, oval leaflets that are light green with a hint of blue. Anytime warmth is available, the variously blue-shaded flowers appear along the viny stems alone or in pairs. The blossom has a large rounded petal called a standard on the bottom, with a middle that is yellow or ivory. The keel is a short pair of petals that hide the flower's tube core. Bees pollinate the flowers, producing a downy pod of seeds that readily germinate nearby the mother plant.
