A vigorous ornamental vine grown by Thomas Jefferson (species plant). A tender perennial grown as an annual.
Pronunciation
(LAB-lab)
Plant Type
All Plants, Perennial Tender
Hardiness Zone
9-11
Sunlight
full
Moisture
average, drought tolerant when established
Soil & Site
average
Temperature
not frost hardy
Flowers
pea-like, bi-color pink and purple, found on loose clusters on long stems extending above the foliage, short lived perennial in warmer regions
Fruit
purple, bean-like seed pods
Leaves
purplish on the underside
Stems
twinning stems
Dimensions
10-12 feet
Maintenance
cut back to control spread
Propagation
seeds, soaking seeds 12 -24 hours hastens germination, can be sown in situ, best started in a pot such as "peat pot" so there is little root disturbance
Native Site
Africa
Cultivar Origin
Introduced in 1790. First American citation 1806.
Misc Facts
Almost all parts of the plant are edible. The dried seeds are toxic and should be well cooked in two changes of water. The young leaves along with the flowers can be eaten in salad; the older leaves can be cooked. The tuber should be boiled. (syn Dolichos lablab)
Notes & Reference
#51-Armitage's Manual of Annuals, Biennials, and Half-Hardy Perennials (Alan Arimitage),
#62-Manual of Climbers and Wall Plants (J K Burras, Mark Griffiths), #108-Restoring American Gardens (Denise Wiles Adams), #27-Rodale's Annual Gardens (Paul Loewer)