How to care for Hoya Australis
Hoya australis · Apocynaceae
An Australian native hoya with glossy, rounded leaves and sweetly scented white flowers with red centers. It is vigorous, sun-tolerant, and quick to climb, making it one of the easiest hoyas to grow large. New leaves often emerge with a reddish tint in strong light. Water roughly every 8 days while it's growing (about every 16 in winter), give it bright, indirect light, kept above 50°F (10°C) — average room humidity suits it.
Care at a glance
Soak when the top half of the chunky mix is dry; glossy leaves lose their shine and flex when it is running low.
Very bright light with some direct sun suits it; it flowers poorly more than a meter from a window.
Half-strength balanced feed monthly through spring and summer.
Mistakes that kill this plant
- Dense potting soil that never dries — airy bark mix is non-negotiable.
- Keeping it in low light and wondering why it only makes bare vines.
- Watering weekly in winter when the plant is barely transpiring.
Seasonal tips
- Train it up a support early — mature vines thicken and are hard to redirect.
- Acclimate it gradually if moving to a sunnier summer spot.
- Slightly rootbound plants in bright light bloom most reliably in late summer.
Is it safe for pets?
We couldn’t place Hoya Australis on a toxic or a non-toxic list, so its toxicity is unconfirmed — which is not the same as safe.
Full pet-safety details for cats & dogsCare for your Hoya Australis on autopilot
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Toxicity here is informational, not a safety guarantee. Those are our own records, compiled by following the ASPCA's published toxic and non-toxic plant lists and Pet Poison Helpline's plant poison list rather than copied from them — confirm anything that matters against those lists or with your vet. If your pet ingested this plant, contact your vet or the ASPCA Animal Poison Control Center at (888) 426-4435.