Plant Library

Hoya (Wax Plant) Care Guide

Hoya carnosa

By the Plantshop.com Editorial Team · Updated · How we research · Report an error

Waxy leaves and sweet-scented star-shaped flower clusters. Hoyas are pet-safe and collectible, with many varieties.

Photo of a hoya (wax plant) plant (Hoya carnosa)
Photo: Sang83 / CC BY-SA 4.0, Wikimedia Commons. Source · License

Plant profile

Light
Bright indirect light
Water
When soil is mostly dry
Humidity
Average
Pets
Non-toxic to cats and dogs (ASPCA) [ASPCA]
Difficulty
Easy
Size
Trailing or climbing 3-6 ft
Growth
Slow to moderate

Light

Bright indirect light. Rotate the pot every few weeks so growth stays even.

Water

When soil is mostly dry. 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 cut off old flower spurs; they rebloom from the same spot.

Common problems

Pets

Non-toxic to cats and dogs (ASPCA), according to the ASPCA plant list. Check any plant in our Pet-Safe Plant Checker.

Ready to buy? See sizes, what to check and which shops list it.

Buy a hoya (wax plant) online

Sources

  1. ASPCA Animal Poison Control: Toxic and Non-Toxic Plants
  2. NC State Extension Plant Toolbox: Hoya carnosa
  3. RHS: Houseplants, how to grow and care