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Hoya macgillivrayi


Scientific Name

Hoya macgillivrayi F. M. Bailey

Scientific Classification

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


Hoya macgillivrayi is a fast-growing, root climber and twiner with thick, oval, pointed leaves. They are light green and set opposite each other on the twining stems. The flowers are up to 2.4 inches (6 cm) wide on long stalks and borne in umbels of 6 to 10 flowers radiating from a central axis. A rich burgundy, they are made up of 5 sepals and five waxy petals. The stamens are enclosed by a fleshy appendage called a corona. The fruit matures to a pair of pendulous follicles up to 10 inches (25 cm) long.


USDA hardiness zones 11a to 11b: from 40 °F (+4.4 °C) to 50 °F (+10 °C).

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).

When your 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. These plants 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 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.


Hoya macgillivrayi is native to northeastern Australia.


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