Plant Library
Hoya Carnosa (Wax Plant) Care Guide
Hoya carnosa
By the Plantshop.com Editorial Team · Updated · How we research · Report an error
Hoya carnosa is the classic wax plant: thick, waxy leaves and fragrant starry flower clusters on mature vines. It differs from generic 'hoya' listings that mix species; carnosa is the one most often sold for hanging baskets and for bloom.
Buy a hoya carnosa (wax plant) 1 verified shop, checked 21 Oct 2026
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Plant profile
- Light
- Bright indirect light; some gentle morning sun helps flowering
- Water
- When the soil is mostly dry; thick leaves store water
- Humidity
- Average
- Pets
- Non-toxic to cats and dogs (ASPCA lists Hoya) [ASPCA]
- Difficulty
- Easy
- Size
- Trailing or climbing vines 3-6+ ft
- Growth
- Slow to moderate; flowers on older vines
Light
Bright indirect light; some gentle morning sun helps flowering. Rotate the pot every few weeks so growth stays even.
Water
When the soil is mostly dry; thick leaves store water. Always use a pot with drainage holes and empty the saucer after watering. Plants use far less water in winter.
Humidity and temperature
Humidity: average. Most houseplants prefer 60-80°F (16-27°C) and dislike cold drafts and heating vents.
Soil and feeding
Use a well-draining potting mix with bark or perlite for air. Feed lightly in spring and summer with a balanced houseplant fertilizer at half strength; skip feeding in winter.
Our tip
Do not remove the woody spurs that held flowers; the next clusters form on the same spurs.
Common problems
- Soft, yellow leaves: Overwatering.
- Wrinkled leaves: Underwatering or very dry air.
- No flowers: Plant too young, too little light, or spurs pruned off.
Pets
Non-toxic to cats and dogs (ASPCA lists Hoya). Check the ASPCA plant list. Check any plant in our Pet-Safe Plant Checker.
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