Hoya Retusa PlantsHoya Retusa Plants for Sale Online Hoya Retusa (Hoya retusa) is a Hoya plant that produces spindly, waxy leaves and is ideal as a hanging plant. As your Hoya retusa succulent matures, it will bloom white and pink star shaped flowers. From India, this grass like semi succulent Hoya will cascade down the edges of a planter or shelf and can grow well past 4 feet long. They love bright light but dont leave them in direct sun for more than a few hours.