There are over 300 identified Hoya, and these come from Asia, Polynesia, Australia. 
Thrives in bright indirect light. 
 water weekly
Water every 1–2 weeks, allowing soil to dry out between waterings. Expect to water more often in brighter light and less often in lower light.

Wrinkling leaves, dry potting mix: under-watered

Yellowing and becoming mushy: overwatered and root rot