How to Fertilize Variegated Hoya?
Since the wax plant has a lot of foliage, choose a fertilizer with a higher nitrogen content to keep your plant looking green and healthy. However, around two months before the plant usually blooms, switch to a fertilizer with higher phosphorus to encourage a healthy bloom. Once blooming begins, switch back to the high-nitrogen fertilizer. Fertilizing once a month should be sufficient - begin in the spring but stop in the winter.