Seeds from this Cassia Bicapsularis. This plant stays evergreen and produced these gorgeous masses of bright yellow clumps of blossoms from late fall through Christmas in my zone 8b. This plant is a very fast grower will not take too long to blossom from seeds. Another real show stopper for the neighbors. I have many times had cars stop and take a picture of this 10-12 foot shrub. It can also grow 8 feet across and is hardy in zones 8-11.