Wax plant care guide
Hoya carnosa
Quick answer
Water your wax plant when the top 4 cm (1.6 in) of soil feel dry. In summer that’s typically every 7 to 11 days.
- WateringEvery 7 to 11 days · summer
Every 14 to 22 days · winter - LightBright light, some sun
- Climate18–27 °C (64–81 °F)
- Pet safetyPet-safe (non-toxic)
Not sure it’s this plant?Get the free Botanicaly app and find out with a photoWhen and how to water
4 cm (1.6 in)
- Summer · Jun–AugEvery 7 to 11 days
- Winter · Dec–FebEvery 14 to 22 days
Use room-temperature water and let any excess drain. Never leave the pot sitting in standing water.
Work out your own rhythm with the watering calculator.
Light and placement
Bright light, some sun
Wax plant needs bright light and a little gentle direct sun, such as morning sun. Strong midday sun can scorch the leaves. Place it close to an east- or west-facing window.
Feeding
Feed your wax plant every 14 days while it’s actively growing. Use a balanced liquid houseplant fertilizer at half the strength on the label, and only on soil that’s already damp. Feeding dry roots can scorch them.
When growth pauses, skip the fertilizer and let it rest.
Temperature & humidity
Climate18–27 °C (64–81 °F)
Humidity50–70%
During leafy growth, aim for 18–27 °C (64–81 °F). For routine indoor care, keep it above about 10 °C (50 °F) and avoid cold drafts. This is a care guideline, not an exact damage threshold. Cooler overwintering depends on the species and its rest conditions.
It does best at 50–70% humidity. It doesn’t need misting.
Common problems
Yellowing, drooping, and dry edges often point to watering or drainage. Compare the signs before changing the routine.
Find what’s wrong
Toxic to pets?
No. Pet-safe.
Wax plant is non-toxic to cats and dogs. Safe to keep in a home with pets.
Wear gloves when you cut or repot it. Keep the sap away from your eyes and skin, and wash your hands afterwards.
Pet-safety information in the JungleBook uses ASPCA reference data where available. It is reference information, not veterinary advice.
Common questions
How often should I water a wax plant?
Water your wax plant (Hoya carnosa) when the top 4 cm (1.6 in) of soil feel dry. In summer, that’s typically every 7 to 11 days. In winter, slow down to every 14 to 22 days.
How much light does a wax plant need?
Wax plant needs bright light and a little gentle direct sun, such as morning sun. Strong midday sun can scorch the leaves. Place it close to an east- or west-facing window.
Is wax plant safe for cats and dogs?
Wax plant is non-toxic to cats and dogs. Safe to keep in a home with pets.
Why is my wax plant turning yellow or drooping?
Yellowing, drooping and brown tips can have several causes. Check the potting mix before adding water and follow this plant’s watering and rest instructions. If the mix is still wet, do not add more water. Check drainage and roots, then light, humidity, water quality and pests. Faded color or webbing alone does not show that the roots need water.
Sources6 references
- Royal Botanic Gardens, Kew: Plants of the World OnlineTaxonomy · accepted name · classification
- Royal Horticultural SocietyLight · watering · temperature · humidity · feeding · salt flushing · flower spurs
- Iowa State University Extension and OutreachLight · moisture · feeding · temperature · humidity · repotting · flowering · pests and symptoms
- North Carolina State University Extension Gardener Plant ToolboxLight · fast-draining mix · dry-down · humidity · repotting · peduncles · pests
- University of Florida IFAS Extension: Gardening SolutionsBright window · seasonal watering · dry-down · repotting · peduncles · mealybugs
- ASPCA Animal Poison ControlScientific name · toxicity classification for dogs, cats and horses
- How we check our plant advice
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