Easy Tropical Safe for pets

Wax Plant

Hoya carnosa

A climbing plant with waxy leaves that produces stunning clusters of fragrant star-shaped flowers resembling porcelain.

The essentials at a glance

Watering

Every 10 days
Light

Bright indirect light
Humidity

40–60 %
Temperature

15–28 °C

How to care for your Wax Plant

Everything you need to keep your Wax Plant healthy: watering, light, humidity, feeding, repotting and pruning.

Hoya carnosa is native to Eastern Asia and Australia, where it grows as an epiphytic vine in humid tropical forests. Its oval, thick, waxy leaves are carried on twining stems that can reach several meters in length. Flowering is the highlight of this plant: spherical umbels of small star-shaped flowers, pinkish-white with a red center, releasing an intense sweet fragrance in the evening. Patient and undemanding, it rewards growers who provide brightness and keep it slightly root-bound in its pot.

Watering your Wax Plant

Every 10 days

Allow the soil to dry out between waterings. Water thoroughly, then wait until the top half of the soil is dry. Reduce watering significantly in winter.

How to know it needs water

Top half of soil feels completely dry
Leaves feel slightly soft or wrinkled
The pot feels notably lighter when lifted

How much light a Wax Plant needs

Bright indirect light

Bright indirect light for best flowering. Tolerates medium light but will not bloom. Some morning direct sun is beneficial. Avoid harsh afternoon sun.

Direct sun tolerated: 0 to 3 h a day
Orientations that suit it: North, North-east, East, South-east, South, South-west, West, North-west

Humidity and misting

40–60 %

40–60% Benefits from occasional misting but tolerates average humidity. Avoid misting flower buds directly as this can cause them to drop.

Feeding and fertiliser

Every 30 days

Feed monthly in spring and summer with a bloom-boosting fertilizer. A balanced fertilizer works too. Stop feeding in autumn and winter.

Recommended feed: Phosphorus-rich fertilizer (10-30-20) during growing season · 1-2-1

Repotting your Wax Plant

Every 36 months

Hoyas bloom better when slightly root-bound, so repot infrequently. Use a chunky, well-draining orchid-like mix with bark, perlite, and a small amount of potting soil.

When: Spring
Potting mix: All-purpose potting mix
Mix in: perlite, pine bark

The tell-tale signs

Roots completely filling the pot and circling
Soil breaks down and compacts
Plant has not bloomed despite good conditions — may actually prefer being root-bound

Pruning your Wax Plant

After flowering or when stems become too long. Never remove spent flower stalks (peduncles) as new flowers will bloom from the same spur. Trim wayward vines to shape. Cuttings root well in water or sphagnum moss.

Through the year

Watering is not set once and for all: it follows the light and the growth. Allow 15 days between waterings in the depth of winter, against 8 in the growing season.

15 J
13 F
10 M
9 A
8 M
8 J
8 J
9 A
10 S
11 O
13 N
15 D

Active growth · Days between waterings

Good to know

Hoya carnosa flowers produce sweet nectar droplets and release an enchanting fragrance, especially in the evening, to attract nocturnal pollinators.
The same flower stalk (peduncle) can produce blooms year after year for the plant's entire life, so it should never be cut off.

Frequently asked questions about the Wax Plant

How do you care for a Wax Plant?

Water it every 10 days. Give it bright indirect light. Ideal humidity: 40–60 %. Ideal temperature: 15–28 °C. Allow the soil to dry out between waterings. Water thoroughly, then wait until the top half of the soil is dry. Reduce watering significantly in winter.

How often should you water a Wax Plant?

Every 10 days Allow the soil to dry out between waterings. Water thoroughly, then wait until the top half of the soil is dry. Reduce watering significantly in winter. How to know it needs water : Top half of soil feels completely dry ; Leaves feel slightly soft or wrinkled ; The pot feels notably lighter when lifted.

How much light does a Wax Plant need?

Bright indirect light Bright indirect light for best flowering. Tolerates medium light but will not bloom. Some morning direct sun is beneficial. Avoid harsh afternoon sun. 0 to 3 h a day

Is the Wax Plant toxic to cats and dogs?

No, the Wax Plant is not listed as toxic to cats and dogs. That is still no reason to let your pets chew on it.

Why are my Wax Plant leaves turning yellow?

Yellowing most often comes from too much water: the mix stays wet and the roots suffocate. Check that the pot drains, empty the saucer, and let the mix dry before watering again. Too little light or a cold draught cause the same symptom.

When should you repot a Wax Plant?

Repot every 36 months, ideally in spring. Hoyas bloom better when slightly root-bound, so repot infrequently. Use a chunky, well-draining orchid-like mix with bark, perlite, and a small amount of potting soil.