Grown in South-east Asia for  centuries, the Carambola or commonly known as ‘five corner fruit’ or ‘star fruit’, is a slow growing, short trunked evergreen tree that grows to 3-4m tall and displays attractive foliage with fragrant, pink to lavender flowers. The fruit is a 4 to 5 celled berry with a waxy surface containing a juicy transparent fleshy inside that has a citrus quality with a floral accent.

  • Plant & Growing Tips:

    Adaptable to various types of soils but will grow faster and bear more heavily in rich loams.

    Prefers a position that is in full sun with warm to high humidity climates.

    Does not tolerate drought, so supply adequate irrigation.

    Relatively cold hardy, do protect from winds.

    Shape trees when they are young, by choosing 4-6 sturdy, wide angled branches and a vertical leader. Otherwise, mature plants can be pruned and maintained at 1.8 - 3m high by selectively removing upper limbs back to their origins. This creates an easier tree to access fruit.

    Tipping the shoots in excess of 60-90cm results in an increase of branching, creating a much compact, bushier tree.

    When planting, give a spacing of 7 – 9m from any other trees or structures.

    If grown in a container, the Carambola can be hedged and pruned as a much smaller tree.

    There are several varieties in Australia such as the Fwang Tung, Golden Star, Jungle Gold and B16. Most of these varieties are well suited for training on an overhead trellis.

    Trees may require netting to protect fruit from bird damage.

  • Fertiliser Applications:

    Stage: Young Tree (<3yrs)

    Product: Dinofert Organic Fertiliser, Dinofert Standard Pellets

    Gardener Use: 2½ cups (500g)

    Commercial Use: 400-700g

    Comments: Apply rate every 30-60 days until tree is well established.


    Stage: Mature Tree (+4yrs)

    Product: Dinofert Organic Fertiliser, Dinofert Standard Pellets

    Gardener Use: 12-15 cups (2.4-3kg)

    Commercial Use: 3kg

    Comments: Application frequency is usually 4-6 times per year. The most likely months for fertilising your Carambola, is around November, January, April and August. Timing should be according to crop cycle and location. Application rates may need to be lowered by half if your Carambola is a container plant.


Please note that the above information and recommendations are provided in good faith and are given without liability for loss or damage suffered as a result of their application. Optimum response to fertilisers will only be achieved when weeds, insect pests and diseases are controlled and adequate soil water is available.

Fertiliser use recommendations are presented as a practical guide to good agronomic practice under most situations. Local soil, climatic and other conditions should also be taken into account as these could affect plant response to fertiliser rates and applications.

For further information we recommend you seek advice from your local agronomist.