Hoya carnosa
The classic wax plant: a robust climbing epiphyte and lithophyte of warm-temperate to subtropical forest from southern China and Taiwan to southern Japan, where it roots onto tree bark and rocks, often in coastal woodland. It comes from a markedly seasonal climate with warm, very wet summers and a cooler, drier winter, which is why it tolerates cool rooms and flowers best after a cool, slightly dry winter. Give it bright filtered light, a fast-draining mix and a dry-down between waterings.
Where it grows wild
Flora of China describes it as a climbing epiphytic shrub of mountain forests, usually on trees, with stems to 6 m. In southern Kyushu and the Ryukyu Islands it grows in forest, including coastal forest, rooting onto tree trunks and rocks with adhesive aerial roots. It is therefore both epiphytic and lithophytic, typically at forest edges and in open woodland rather than in deep shade.
Flora of China gives 200–1200 m in mountain forest. The wild GBIF records (mostly Japanese) run 7–1250 m with a median of about 130 m, so most measured sites are warm, near-coastal lowland.
🔒 Growing it like that
The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 3.0 licence, unmodified.