Hoyas produce clusters of fragrant, waxy flowers and are also known as wax plants or porcelain flower plants. These climbing plants prefer growing in pots and grow great when left undisturbed. There are more than 500 different species, however the most commonly grown are Hoya carnosa (the common waxflower), Hoya kerrii with its delightful heart-shaped leaves and the Australian native Hoya australis. Â
Bright indoor light or semi shade outdoors
Allow to dry out slightly between watering
Well drained soil
Suitable for all Australian climates
How to grow Hoya in a pot
Choose a location
Find somewhere that receives bright, indirect light. If growing outside, choose a protected position that has dappled shade or gentle morning sun. As they are tropical plants, they thrive in warm frost-free climates.
Pots & Potting Mix
Hoyas thrive in pots and love being root bound. Choose a pot that will drain well and is only slightly larger than the root ball of the Hoya. Planting a Hoya in a larger than necessary pot will create an unhealthy zone around the roots. They can stay happily in the same pot for several years and will not flower if frequently disturbed.
Free draining, well aerated potting mix is ideal for Hoya plants. Partly fill your pot with the potting mix & place the plant in. Backfill with more potting mix, ensuring not to fill it higher than where the root ball starts. Water in well.Â
Training Hoyas
Hoyas can be left to grow over the side of your pot, however you can train a Hoya to climb vertically. Use a trellis or pole, and gently tie stems to encourage growth in that direction.
Watering & Fertilising Hoyas
Hoyas do not like being waterlogged, so allow the potting mix to dry out slightly between waterings. When it is hot & dry, mist the Hoya to replicate the humid climate they grow best in.
From Spring to Autumn, fertilise Hoya every 2 months. A great way to fertlise is to use a plant spike or slow release dripper.
Frequently Asked Questions
When should I repot my Hoya?
Hoyas prefer being pot bound, repotting is only required every few years
Should I cut the old Hoya flower off?
Don’t be tempted to cut off the old flower stem as the next lot of flowers can flower from the same spot.
Why isn't my Hoya flowering?
A Hoya that refuses to flower may need more light or some more nutrients. Ensure you are fertilising adequately.
Hoyas also take their time to mature, and may not flower until they are a few years old.
