Wax plant care guide
Hoya carnosa
Also known as: Porcelain flower, Hoya
Pets and children
We haven't been able to confirm how this plant affects pets or small children. If any is eaten, consult a veterinarian or a doctor.
How often to water Wax plant
- Spring–Summer (Mar–Sep)
- Every 7 days
- The thick leaves store water, so as a guide water thoroughly only after the soil has dried out.
- Autumn (Oct–Nov)
- Every 10 days
- Water about two to three days after the soil dries; keeping it on the dry side encourages flower buds.
- Winter (Dec–Feb)
- Every 14 days
- Water sparingly about a week after the soil dries; waiting until the leaves wrinkle slightly is fine.
Light and placement for Wax plant
Bright light through a sheer curtain is generally best: the brighter the spot, the more readily it flowers, while in dim light it stretches and stays flowerless; avoid midsummer direct sun, which scorches the leaves.
Overwintering Wax plant
Overwintering guide: 5°C (41°F) or above
Move it to a bright spot indoors when nights fall below about 10°C; it tolerates roughly 5°C if kept fairly dry and away from cold windowpanes.
Fertilizing and repotting Wax plant
Fertilizer
Diluted liquid feed about once or twice a month from May to September; too much gives leaves at the expense of flowers, and none is needed in winter.
When to repot
Spring–Summer (Mar–Sep)
Common problems with Wax plant
- Overwatering rots the roots; the leaves yellow and drop.
- Cutting off the spent flower stalks removes next year's blooms.
- In a dark spot the vines stretch and no flowers form.
Tips for growing Wax plant
- The short spurs that carried flowers bloom again from the same spot each year, so leave them on.
- It flowers better slightly pot-bound, so repotting every few years is enough.
- Vine cuttings with a node root easily in soil or water.
These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.
Keep your plant log going
Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.
