Justicia is a genus of evergreen and deciduous perennials mostly shrubs or small twiggy plants that grow in tropical and sub-tropical climates. These showy perennials are good plants for mixed borders and beds where they produce masses of ornamental flowers. Most species of Justicia can be grown as container plants though they would require pinching and pruning after flowering to keep them in shape.
Almost all plants in the genus of Justicia are frost tender and need to be protected completely from frost and freeze. If you are growing them in a cooler climate, it is advised to move them indoor in frosty season. When grown outdoors, Justicia plants prefer a well-drained and fertile soil under a good sunny exposure.
The genus is usually represented by Justicia brandegeana which is grown for its showy pink flower that is of the shape of a shrimp that is why it is commonly described as Shrimp Plant. It is an easy to grow plant that is resistant to pests and diseases. The Shrimp Plant grows in clumps of weak, twiggy stems that grow up to 1 to 1.5 meter. The leaves are soft, fresh and evergreen. The plant usually blooms in summer but in mild climates it can bloom almost all through the year. Propagation is easy from cuttings.