How to grow Rambutan in Australia
Rambutan is a true tropical tree from Malaysia and Indonesia, grown for its golf-ball-sized red or yellow fruit covered in soft spines, with sweet, juicy white flesh like a lychee. In Australia it crops only in the humid tropics, around Darwin and on the north Queensland coast, and is damaged by cool nights.
📖 Our full guide: How to Grow Rambutan in Australia
At a glance
When to plant by region
| Region | When to plant | Regional note |
|---|---|---|
| South East Queensland | Not suited | Not reliable in SEQ. Rambutan is a true tropical that is damaged below about 8°C, and Brisbane winter nights often drop lower. It crops only on the north Queensland coast and around Darwin, so grow lychee or longan instead. |
| Northern Rivers NSW | Not suited | Not reliable in the Northern Rivers. Rambutan is a true tropical; cool winters stop it cropping and hinterland frosts kill it. |
| Sydney & Coastal NSW | Not suited | Not viable in Sydney. Too cold. |
| Melbourne & Victoria | Not suited | Not viable in Melbourne. True tropical only. |
| Adelaide & SA | Not suited | Not viable. True tropical only. |
| Perth & WA | Not suited | Not viable. True tropical only. |
| Tasmania | Not suited | Unsuitable. True tropical only. Not viable in Tasmania. |
| Canberra & ACT | Not suited | Not viable. True tropical only. |
| North Queensland | September to March | North QLD is ideal rambutan country. Year-round warmth and humidity. |
| Darwin & Top End | September to March | Darwin ideal. Year-round tropical warmth and humidity. |
Not to be confused with: Lychee and Longan, relatives with smooth or rough skins that are better suited to subtropical gardens.
Where to plant
Rambutans need warm, humid conditions all year: high rainfall, average minimum temperatures above about 20°C, and days around 30°C. Plant in full sun, sheltered from wind, in deep, well-drained loamy soil with a pH of about 5.5 to 6.5. Mulch heavily and never let the roots dry out.
In Australia rambutans are grown around Darwin and on the coast of north Queensland. Even brief cold damages them.
- North Queensland and Darwin: ideal rambutan country, with year-round warmth and humidity.
- South East Queensland and the Northern Rivers: not reliable. Winter nights often drop below about 8°C, which damages the tree, and it does not crop. Grow lychee or longan instead.
- Sydney, Melbourne, Adelaide, Perth, Canberra and Hobart: not suited; too cold.
Choosing a variety
Rambutan flowers can be male, female or hermaphrodite, so seedlings are unreliable croppers. Buy a grafted tree of a named variety from a tropical fruit nursery. Varieties grown in Australia include Jitlee, R156, R167 and R134; ask your nursery which crop well in your area and whether a pollinator is needed.
How to plant
- Plant a grafted tree in the warm, wet months, in a sheltered, sunny spot.
- Dig compost into a wide planting area of deep, well-drained soil.
- Plant at the same depth as in the pot, water in deeply and mulch thickly, keeping mulch off the trunk.
- Shelter young trees from wind and keep the soil constantly moist while they establish.
Watering and feeding
Water frequently and deeply. Rambutans do not tolerate drought, so water through the dry season and keep a thick mulch over the roots. Dry air or soil browns the leaf edges and stops fruiting.
Feed regularly through the warm growing period with a balanced fertiliser or compost and manure.
Pruning and care through the year
- Prune after harvest to keep the tree between about 4 and 8 m, so the fruit can be reached with a picking pole and the tree can be netted.
- Net the tree as fruit colours; birds and flying foxes are major pests. Use wildlife-friendly netting with a fine mesh.
- Check for scale, mealybugs and thrips on new growth.
Harvesting
In the Top End rambutans fruit from about October to mid January. Fruit does not ripen after picking, so harvest when fully ripe, usually two to three weeks after the skin changes colour to red or yellow all over. Snip whole clusters with their stalks, using a picking pole for high fruit.
Cool the fruit with water after picking and keep it in the fridge for a few days. Peeled fruit freezes well.
Using it
Peel off the soft, spiny skin and eat the sweet, juicy flesh fresh, discarding the seed. Peeled rambutans are also used in fruit salads and desserts, or preserved in syrup.
Companion planting
Rambutan suits a humid tropical orchard alongside other tropical fruit trees.
Good companions
- Tropical fruit trees It shares the same warmth, humidity and mulched, moist soil, and taller trees can shelter it from wind.
Pests and diseases
Birds and flying foxes take the most fruit. Several insects and fungal diseases can affect rambutans in the tropics.
Pests to watch for
- Birds Fruit pecked or taken as it colours. Net the tree.
- Flying foxes Fruit eaten or knocked down overnight. Net the tree with wildlife-friendly netting.
- Fruit fly Sting marks and rotting fruit. Pick fruit as it ripens and destroy fallen fruit.
- Scale Small bumps on stems and leaves with sticky honeydew and sooty mould.
Diseases to watch for
- Powdery mildew White powdery growth on flowers and young fruit, which may drop.
- Stem canker Sunken, cracked patches on branches with dieback beyond them. Prune out affected wood.
Common questions
Can I grow rambutan in Brisbane?
Not reliably. Rambutan is damaged below about 8°C, and Brisbane winter nights often drop lower. Lychee and longan are better choices for south east Queensland.
When are rambutans ripe?
Usually two to three weeks after the skin turns fully red or yellow. They do not ripen after picking, so wait until they are fully coloured and sweet.
How long does a rambutan tree take to fruit?
A grafted tree usually starts cropping after about three years. Seedlings take longer and may be male, so grafted trees are recommended.
How big does a rambutan tree grow?
Up to 25 m if left unpruned, but backyard trees are usually kept to about 4 to 8 m for easier picking and netting.
How do I stop flying foxes eating my rambutans?
Net the tree before the fruit colours, using wildlife-friendly netting with a fine mesh, and keep the tree pruned to a size you can cover.
Sources we checked: NT Government: Growing rambutan at home.