How to Grow Cassia Plants in your Garden

Gardener's HQ Guide to Growing Wild Senna and Shower Trees

Cassia can be either hardy perennial or annuals.

They generally reach an height of 60 cm to 1.2m in height, and resemble small perennial trees.

They have the common names of Wild Senna, Candle bush (Cassia alata) American Senna, Golden shower tree (Cassia fistula) and Partridge tree.

Cassia have small pea shaped yellow flowers.

How to Grow Wild Senna - Cassia

If planning to grow Cassia outdoors from the off it is best to sow out the seed in either Summer or autumn at a depth of 3 mm.

Wild Senna-like species should be grown in soil that has good drainage, in either a sunny or partly shaded part of the garden.

When growing Cassia indoors first then you will first need to chip the seeds, then soak in warm water for three hours before sowing.

They should be planted about 7 weeks before you transplant the seedlings outdoors, in the autumn or after the last frost of the spring.

When putting the seedlings out they should be spaced at about 60 to 90 cm apart (24 to 36 inches).

Caring for Cassia

Once established Cassia requires regular fertilisation and watering; ideally they should be thinned in the autumn.

I hope that you enjoyed this guide on how to grow Cassia plants. You may also enjoy the following Gardener's HQ growing guides: How to grow Mimosa pudica and Cercis canadensis plants.