Mussaenda erythrophylla, the red flag bush, is a tropical evergreen shrub grown for its spectacular display of enlarged, petal-like bracts in glowing red or pink that surround small star-shaped flowers. Native to West Africa, it thrives in the warm, humid parts of India, where it flowers abundantly through the warm and monsoon months. The velvety bracts hold colour for a long time, creating a near-continuous tropical show. It can be grown as a feature shrub, trained on a support, or kept in a large pot. Heat-loving and floriferous, Mussaenda brings bold, lasting colour to warm gardens.
Specifications
| Family |
Rubiaceae |
| Native region |
West Africa |
| Mature height |
1.5-3 m |
| Mature spread |
1-2 m |
| Growth rate |
Fast |
| Foliage |
Evergreen, soft veined green leaves |
| Flower colour |
Red or pink bracts with small yellow flowers |
| Flower season |
Warm and monsoon months |
| Climate zone |
Tropical, humid |
Care guide
| Sunlight |
Full sun to partial shade |
| Watering |
Regular; keep evenly moist in warm months |
| Soil / mix |
Rich, well-drained loam with organic matter |
| Temperature |
18-35 C; frost sensitive |
| Humidity |
High |
| Fertilizer |
Balanced feed monthly in growing season |
| Pruning |
Prune in late winter to shape and renew |
| Repotting |
Every 1-2 years if potted |
| Propagation |
Semi-hardwood cuttings, air layering |
| Pests & problems |
Mealybugs, scale, whitefly |
| Toxicity / safety |
No major toxicity reported |
| Difficulty |
Easy in warm humid climates |
Uses
Grown as a showy flowering shrub, screen or large container plant for long-lasting tropical colour in warm, humid gardens.
Growing tips
Best in coastal and southern India; give warmth, humidity and rich moist soil, and prune in late winter to encourage vigorous new flowering shoots.