Allamanda cathartica 'Hendersonii' is a handsome vigorous evergreen perennial vine which can climb to heights over 50 feet or can be pinched back to grow as a large freestanding shrub. The plant has glossy green leathery leaves year-round and exceptionally attractive night-scented orange-yellow trumpet-shaped blooms nearly year-round.
In temperate regions, allamanda may be grown outdoors in containers during the summer months and brought into a greenhouse or conservatory to over-winter. They require full sun and fertile, well-drained, acidic soil for best growth. Though somewhat drought tolerant, they look and grow best with evenly moist conditions. Best flowering in full sun. Best performance occurs in hot and humid climates where nighttime temperatures do not dip below 15 degrees
Grow as annual vine for porches, trellises, fences or through large shrubs. Container plant that can be overwintered indoors. In tropical areas, it is often grown as a hedge.