How to make allamanda grow fast?
For your allamanda plant to grow abundantly, it needs 4-6 hours of bright, full sun throughout the day. They can handle more sunlight than that, but 6 hours or so should be just enough for your allamanda plant to thrive. Grow allamanda in full sun and moist, well-drained soil to keep it happiest. Allamanda will grow in partially shaded spots, but it won’t bloom as well. Because this flowering shrub is drought tolerant, it’s an excellent choice for low-care landscapes.
How long do allamanda flowers last?
Individual purple allamanda flowers last for several days – however, in warm settings, the plant can sport blooming flowers nearly year-round. The best time to prune most allamanda varieties is mid-spring, before they start to bloom. You can trim them back here and there any time of the year, but doing heavy pruning in spring should help give the best display of blooms.