Propagation
If you have sufficient seed, then it can also be sown in situ in mid spring[8].
Division of the tubers when the plant is dormant in spring or autumn.
Cultivation
An easily grown plant, succeeding in any moderately good garden soil[8]. It prefers a limestone soil in a warm position[9], and likes some shade[10].
A climbing plant, scrambling through other plants and supporting itself by tendrils[11]. It tends to be slightly invasive[12] with new stems emerging at some distance from the parent plant[11]. The earthnut pea has occasionally been cultivated for its edible root[3][13]. Slugs are inordinately fond of this plant and will totally destroy it given a chance[K]. A good bee plant.
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[8].
