Hoya quinquanervia

H. quinquanervia is native only to the island of Luzon in the Philippines.  This species enjoys plenty of water, due to its wet tropical jungle habitat, but also wants a loose, well-draining soil mix (like ST Hoya Mix.)  As an understory plant that grows as an epiphyte on tree trunks, t can tolerate a bit less light than some other Hoya species and still maintain the elegant sheen of its foliage.