Canavalia Species, Bay Bean, Beach Bean, Coastal Jack Bean, Horse Bean

This plant is super easy to germinate. Stick it in some sand and water twice a day. It molds easily in regular soil.

I collected the beans on Cape Canaveral Seashore in 2005. I finally succeeded in germinating it in March 2009. Here is the story of how...Read More I germinated it.
http://davesgarden.com/community/forums/t/968263/
I am now using this method to germinate the more difficult seeds.

Beach Bean Canavalia rosea is ntive to Texas and other States.

This is a creeping plant (a climber, if it has where to climb) from the southeastern brazilian litoral, being one of the first colonizers...Read More of the beach sands, near to the sea. In fact, it´s a strong contester for other typical plants from that area, like Ipomoea imperati and Ipomoea pes-caprae .

It has leaves with 3 broad, dark green leaflets. The flower spikes bear few flowers, which are bright pink with white stripes. It has a broader petal, and 4 curved others around the reproductive organs. It has enough nectar to atract even birds, but the flower size is more suitable for bees and bitterflies. The seed pods are hard, and light green.

This plant needs white and salty sand to grow, full sun, high temperatures and air humidity, preferably humidity from the ocean. It likes moderate watering. It demands a large area to grow, but you can make it climb on something to reduce the room demand.

Also, this isn´t commonly cultivated, mostly found only in wild areas, making it an endangered species. Be careful before getting your hands on it.