Crotalaria is a large genus of flowering shrubs and trees from the Fabaceae family to which popular flowering trees like Laburnum, Orchid Tree, and Wisteria belong. Most species of Crotalaria are indigenous to Africa where they grow in tropical climates as flowering shrubs or small trees.
Crotalarias are popular plants among horticulturists because of showy, yellow flowers that look like fluttering birds giving these plants their common names – Bird Flower and Canary Bird Bush. Most species bloom in spring. Flowering is followed by formation of hallow seed pods containing large seeds that rattle when dried seed pod is shaken, that is why these plants are also known as rattlepods.
A popular garden plant from this genus is Crotalaria agatiflora which grows as a small tree and produces large yellow flowers in spring. Crotalaria capensis is another popular species which is grown as a fast-growing and small tree.
Most species of Crotalaria prefer moderate watering, bright sunlight and a regular soil mix.