They like to be left alone. Do not re-pot too often as they like to be slightly pot bound, they seem to flower better than if they are re-potted often. Do not disturb or repot them when they’re in bloom.
Keep the soil moist in spring and summer, dry but not to the point of shriveled foliage in winter. In dry climates more frequent watering may be necessary. Some like to mist the leaves frequently, to clean them and increase humidity…but NOT when the plant is budding or in flower.
Moderate to high humidity.
Normal room temperatures, min 20°C.
A moist, well-drained, light soil – African Violet soil with some added perlite – is a good growing medium.
In spring Hoyas react favorably to feeding. A liquid food, about every four weeks, three or four times during the growing season will produce a vigorous growth. Withhold food during the winter.
Propagate Hoyas by cuttings of top growth, or by leaf cuttings in the same manner as African Violets and Gloxinias. The average cutting or leaf start will produce a blooming plant in two years or less. The easiest method of propagation is by layering. Layers mature faster and do not need as much patience. Pin down a stem, at the joint, in a moist rooting medium. Sever and pot the new plant when roots have formed.