Allamanda prefers a rich soil and plenty of water during the hot/dry days.
Some of the varieties that are grown here include: Allamanda blanchetii syn A. violacea, which is a shrub with large Purple trumpet flowers; Allamanda purpurea, a small to medium shrub with masses of violet to purple flowers; and Allamanda cathartica cv Caribbean sunrise syn A. catharctica cv cherry jubilee, a climber with large