Plant popcorn cassia in full sun and rich, moist, well-drained soil. Start it from seed or begin with a rooted cutting. Seeds will germinate more readily when soaked in water for 24 hours. Sow seeds shallowly indoors in February or March and wait until all danger of frost has passed before transferring outdoors.

Popcorn plant typically flowers in late summer into fall. Some gardeners bring plants indoors for winter, storing them in greenhouses to get them through to next spring. While it can be grown from seed, most home gardeners buy it as a start in the spring and treat popcorn plant as an annual.

Each flat brown pod contains up to 16 smooth, flattened, bean-like seeds with the pod depressed between the seeds when dry. Popcorn cassia produces typical legume-type pods (L and C) with small brown seeds inside (R).

Popcorn Plant Care. Popcorn plants are somewhat invasive in their native Africa. One variety of the Senna genus can be quite weedy in some hot humid regions such as south Florida.. . . . .364011234758!]0000000000000009783314146381!]