The delicate flowers appear to be made of porcelain, and are truly unique. In fact, those seeing hoya blossoms for the first time may need to touch them to determine that they are real. Since flowers clusters are produced on the same short stems yearly, it is critical that the flowering spurs be left in place after flowering is complete. A common criticism of the flowers is the heady scent they release each evening. Fragrance from a blooming hoya can easily fill a large house.
Some people choose to place the plant outdoors at night, or remove the flowers entirely.
Hoyas should be kept evenly moist during the active growth period in spring and summer. Water can be decreased in autumn and winter to permit drying of the soil between waterings. Fleshy leaves provide the plant with the ability to withstand a considerable degree of drying. Should the plant become excessively dry, the leaves will pucker inward as they lose water. Though drying to this extent is not desirable, full recovery is likely once the plant is watered.