Coleonema
Coleonema is a genus of evergreen shrubs belonging to the Rutaceae family, commonly known as diosmas or breath-of-heaven. These plants are native to South Africa. They are characterized by their fine, needle-like foliage and prolific displays of small, star-shaped flowers that often cover the entire shrub.
Description: Coleonema shrubs typically range in size from 0.5 to 2 meters in height. The leaves are small, aromatic when crushed, and linear or narrowly elliptical in shape. The flowers are usually white, pink, or purple, and are borne in profuse numbers during the flowering season, which is typically in spring and summer.
Cultivation: Coleonemas are popular garden plants due to their attractive appearance, fragrant foliage, and relatively low maintenance requirements. They prefer well-drained soil and full sun to partial shade. They are generally drought-tolerant once established, but benefit from regular watering during dry periods. Pruning after flowering helps to maintain a compact shape and encourages further flowering. They can be propagated by cuttings.
Species: Some well-known species within the Coleonema genus include:
- Coleonema album (White Diosma)
- Coleonema pulchellum (Confetti Bush or Pink Diosma)
- Coleonema calycinum
Uses: Coleonema shrubs are primarily used as ornamental plants in gardens and landscapes. They are suitable for borders, hedges, and containers. The aromatic foliage is sometimes used in potpourri.