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Hoya carnosa (Wax Plant)


Scientific Name

Hoya carnosa (L.f.) R.Br.

Common Names

Wax Plant, Porcelain Flower


Asclepias carnosa, Cynanchum carnosum, Schollia carnosa

Scientific Classification

Family: Apocynaceae
Subfamily: Asclepiadoideae
Tribe: Marsdenieae
Genus: Hoya


Hoya carnosa is a vining succulent that roots along it long, branching stems. In the wild it climbs trees and scrambles over rocks, growing continuously and reaching lengths of 20 feet(6 m) or more. The leaves are smooth, thick and fleshy, up to 3 inches (7.5 cm) long, and paired on opposite sides along the stems. Twenty or more star shaped flowers up to 0.5 inch (1.5 cm) across, typically light pink (but may vary from near-white to dark pink), are borne in pendulous convex clusters, 2 or 3 inches (5 or 8 cm) across. The leaves and the flowers are often described as "waxy".

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How to Grow and Care

Hoyas don't ask for much, beyond the well-draining soil and the warm humid conditions that many tropical flowers crave. They don't like wet feet or heavy soil and as many grow as epiphytes in nature. Give them at least a half day of sunshine, and bring them indoors when temperatures drop below 50 °F (10 °C).

Hoya finishes blooming, leave the flower stalk, as it may produce new flowers. Removing the stalk forces the plant to produce a new stalk, which delays blooming and wastes the plant's energy. They are light feeders and a monthly drink of compost tea or dilute fish emulsion provides all the nutrition these tropicals need. Hoyas like the security of a snug pot and plants that are a bit root bound will flower more prolifically than those that are swimming around in a giant pot.

Propagate Hoyas by cuttings of top growth or by leaf cuttings. The average cutting or leaf start will produce a blooming plant in 2 years or less. The easiest method of propagation is by layering… – See more at: How to Grow and Care for Hoya


Native to Eastern Asia and Australia.


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