Azaleas belong to the Rhododendron genus, and they are members of the heath family (Ericaceae). Good drainage is a must-have for these plants to thrive. Azaleas cannot abide wet feet, so it’s vital to avoid sites that are prone to standing water. Azaleas also require some attention to pruning so that the next flower can blossom. If pruning is managed, you can enjoy blooms for almost 7 months a year.