Wax Flower Overview
Hoya is a genus of over 200 evergreen perennial flowering plants in the Apocynaceae (dogbane) family. Members of this genus are native to coastal bluffs, stream margins, escarpments, and tropical rainforest habitats. They are commonly twining climbers with simple ovate leaves and often fragrant waxy 5-petalled flowers, with a contrasting eye, held in pendant umbels. These are usually cultivated as glasshouse specimens and as houseplants due to their tenderness, but they can be grown outside in sheltered positions and mild climates.