This unique Hoya won't need much from you at all. It will tolerate low light, but be much happier in a warm, sunny spot. When it comes to watering, Hoya prefers to be dry so don't overdo it. Fertilising regularly in the Spring season will help to produce beautiful globe-like wax flowers that smell of dark chocolate.
Yellow leaves are often caused by overwatering, make sure you allow the top half of the soil to dry out thoroughly between waterings and avoid getting water trapped in its twisted leaves.