Popcorn cassia (Senna didymobotrya) earns its name in a couple ways. One very obvious one is its flowers – spikes sometimes reaching up a foot in height, covered in round, bright yellow flowers that look an awful lot like their namesake. The other is its scent – when they’re rubbed, the leaves are said by some gardeners to give off a scent just like that of freshly buttered popcorn. Still other gardeners are less charitable, likening the smell more to wet dog. Smell disputes aside, growing popcorn cassia plants is easy and very rewarding.
This legume species requires ample water and humidity to grow properly, so make sure to water the plant regularly.
The plant doesn’t require much maintenance but may need to be pruned to be kept compact.After flowering, prune as needed.However, it will delay the next blooming.
Although it may tolerate light frost, it cannot tolerate extreme winters, which is why it is recommended to keep it indoors or in a greenhouse when temperatures fall too low.USDA hardiness zone 10.
