Source: Wikimedia Commons
Hoya australis
BeginnerHoya australis
A tough Hoya with thick, rounded glossy leaves and clusters of fragrant cream flowers with red centres. The variegated selection 'Lisa' is widely sold.
About
Hoya australis is a climbing member of the dogbane family, native to northern and eastern Australia, New Guinea, Melanesia and Borneo. Described in 1828, its name means 'southern'. The fleshy to leathery leaves range from elliptic or ovate to almost round, up to about 15 cm long and 12 cm wide; they are yellowish green in sun and darker green in shade. Clusters of cream, bell- to wheel-shaped flowers with red centres have a strong sweet scent and plenty of nectar. The species is highly variable and several subspecies are recognised based on leaf and flower differences. It grows quickly for a Hoya and flowers at a young age. The selection 'Lisa', whose new leaves are pinkish and mature leaves mottled pale green and cream, is widely grown. Both the species and 'Lisa' are available in Japanese garden centres and online. It needs bright light to flower and does best slightly pot-bound and on the dry side.
Source: Wikipedia (CC BY-SA 4.0)
Size of the Hoya australis
The Hoya australis grows to Stems 4-10 m in the wild; leaves up to 15 x 12 cm.
Basic Info
Origin
Northern and eastern Australia, New Guinea, Melanesia and Borneo
Lifespan
Perennial climber
Size
Stems 4-10 m in the wild; leaves up to 15 x 12 cm
Temperature
15〜30℃
Humidity
50〜70%
Watering & Fertilizer
Dilute liquid feed in the growing season
Growing Tips
Light & Placement
Needs bright light to flower. Give it dappled or bright light, avoiding harsh midsummer sun.
Watering
The fleshy leaves store water, so water only when the mix is dry. Overwatering causes root rot.
Temperature & Overwintering
Not frost-hardy. It can summer outdoors in bright shade but should come inside before it turns cool.
Soil & Repotting
Use a free-draining organic mix. It prefers to be pot-bound, so do not overpot.
Propagation
Easily propagated by stem cuttings.
Pests & Cautions
Watch for aphids, mealybugs, scale and spider mites. Leave the flower spurs, as new flowers form on them in later years. North Carolina State Extension lists this species as non-toxic to dogs and cats.
Hoya australis FAQ
QWhat is the growing difficulty level for Hoya australis?
Beginner. A variety suitable for beginners. No special equipment or experience is required—you can grow it without problems by setting up a basic cultivation environment.
QHow large does Hoya australis get?
The mature size of Hoya australis is Stems 4-10 m in the wild; leaves up to 15 x 12 cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Hoya australis?
Hoya australis: watering & fertilizer — Dilute liquid feed in the growing season. Aim for appropriate frequency and amount.
QWhat is the typical price for Hoya australis?
The price of Hoya australis varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: September 23, 2026
References & Sources
Edited & verified by: GrowerDirect Editorial Team
The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.
Taxonomy & Authority
Regulations & Conservation Status
Not listed in the CITES Appendices. Not a designated invasive alien species in Japan, nor a nationally rare species under the Act on Conservation of Endangered Species.
Sources: Species+ (CITES listing check) / Ministry of the Environment: List of Invasive Alien Species
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Find listings for this species
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