Buddleia, popularly called the butterfly bush, is a vigorous deciduous shrub valued for its long, tapering panicles of small honey-scented flowers borne from late spring through the monsoon. The blooms, usually in shades of lilac, purple, pink or white, are a magnet for butterflies, bees and other pollinators.
In India it performs best in the cooler climate of the northern plains and the hills, where its arching branches and grey-green foliage make it a striking informal hedge or border plant. It is exceptionally easy to grow, tolerant of poor soils, and recovers quickly even after hard pruning.
Specifications
| Family |
Scrophulariaceae |
| Native region |
China |
| Mature height |
2-3 m |
| Mature spread |
2-3 m |
| Growth rate |
Fast |
| Foliage |
Deciduous, lance-shaped grey-green leaves |
| Flower colour |
Lilac, purple, pink or white with orange throat |
| Flower season |
Summer to early autumn (monsoon period) |
| Climate zone |
Temperate to subtropical; best in North India and hill stations |
Care guide
| Sunlight |
Full sun; at least 6 hours of direct light for best flowering |
| Watering |
Moderate; keep soil evenly moist when young, then water when the top few cm dry out. Avoid waterlogging. |
| Soil / mix |
Well-drained loamy soil; tolerates poor and chalky soils. Neutral to slightly alkaline pH preferred. |
| Temperature |
Thrives at 15-30 C; tolerates light frost and cuts back in cold but regrows in spring. |
| Humidity |
Adapts to a wide range; prefers moderate humidity and good air circulation. |
| Fertilizer |
Light feeder; a balanced fertilizer or compost in spring is enough. Avoid excess nitrogen which reduces flowering. |
| Pruning |
Prune hard in late winter/early spring to 30-60 cm; flowers on new wood. Deadhead spent spikes to prolong bloom. |
| Repotting |
If container-grown, repot every 1-2 years in spring into a larger pot with fresh free-draining mix. |
| Propagation |
Easily from semi-hardwood or softwood cuttings; also from seed. |
| Pests & problems |
Generally trouble-free; watch for spider mites and occasional caterpillars or aphids. |
| Difficulty |
Easy |
Uses
<ul><li>Excellent butterfly and pollinator plant for wildlife gardens.</li><li>Informal flowering hedge, border or screen.</li><li>Fragrant cut flowers for indoor arrangements.</li><li>Fast cover for new gardens due to rapid growth.</li></ul>
Growing tips
<p>Plant at the start of the cooler season (October-November) or after frost in spring so it establishes before flowering. In North India and the hills it grows vigorously; in hot, humid plains site it in full sun with sharp drainage.</p><p>Cut the shrub back hard in late winter (February) to encourage strong new shoots that carry the summer-monsoon flowers. Deadhead faded spikes regularly to keep blooms coming and to limit self-seeding.</p>
