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Star fruit

Growing Star fruit | How to grow star fruit from seed | carambola fruit

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Star fruit tree (carambola tree)

How to grow Star fruit tree (Carambola),  produce tremendous success in tropical areas, which flourish well in the cold-free areas of the US Department of Agriculture’s hardiness zone 9b -11. If you live in cold areas then you can start it inside the house, let us know how to grow a star fruit tree in a container. You can also grow it by seed, for information see How to grow a star fruit tree from Seed, growing star fruit, How to grow a star fruit tree in a container and more about it.

Star fruit overview

It is a compact and evergreen tree. Which produce an unusual, beautiful and juicy fruit? It is very rich and Woody. You can grow it by seeds. Star fruit should be planted immediately after the use of fruit for successful germination. For a garden landscape, they have the charm of summer. Nature Bring is giving you information on how to develop and care for it.

Star fruit (Carambola) is a member of the Oxalidaceae family. It is the fruit of Averrhoa carambola, which is found in Indonesia, Philippines, Malaysia, Vietnam, Sri Lanka, Bangladesh, India, and Mauritius. It is quite popular in many parts of East Asia and the South Pacific.


Scientific name                                   Averrahoa carambola

Common name                                  Star fruit

Plant type                                           Fruit

Sun required                                      Full Sun

Soil                                                     Well-drained/ sandy soil

Soil PH                                               5.5- 6.5

Zone                                                  9b-11


Star fruit

Growing information Star fruit

Location and soil

Star fruit tree likes Rich loamy soil with a pH level of 5.5 to 6.5. full sun and well-drained soil are better, you should protect from the high wind. Its height is 25 to 30 feet in height and almost the same length.


Regularly give water to starfruit from bloom to harvest. Starfruits like moist soil, although these trees are also limited drought tolerant. Avoid overwatering in these trees, it can cause rot in the roots and its health can also make a difference.


  • Use Balance Fertilizer from spring to fall.
  • You can apply slow-release fertilizer and granular fertilizer every few months.


Star fruit tree requires temperature and humidity; to maintain it, lay a 2 to 4-inch layer of wood chips or mulch all around the tree. It also helps to reduce the weed growth. Place the mulching into a 12-inch distance from the branch of the tree.

Seed storage

Star fruit (Carambola) lasts for a few days after being removed from the fruit, but you can increase its storage life and refrigeration by partial drying, can be used for planting fresh seeds kept in the freezer for about 1 week while refrigeration Before drying it, you can use it for 6 months.

star fruit

How to grow a star fruit tree from seed

  • Do not wait for the year to plant the seeds. Start it inside the house so that you can easily control its germination.
  • Seeds should be sown fresh because they have very little viability, clean it well and keep them in dry and plastic bags and tighten the seeds. Then implant it in your garden.
  • Remove the seeds gently from fully ripped starfruit.
  • Take a seed starter in a pot and wet it hot water. Gradually press the seeds in the base, put a thin layer growing medium over the seed. Put only one seed in a pot.
  • Cover the pot with a plastic sheet. If you use propagation mat, place the pot on it and set the temperature where the temperature remains above 70 degrees F.
  • Sprouts will occur after a few weeks, It also depends on the weather.
  • Remove the plastic sheet. And keep your starfruit in a room with south-west, or pre-facing windows, where the temperature is above 55 F.
  • Star fruit seedling is very fast. Now you can transplant it in filling of foam-based potting soil and sand in the container.

How to grow a star fruit tree in a container

  • It requires full sun and high temperatures to contain this tree in the container. To make the fruit continuously with flowers, it is about 60 degrees F (15 degrees C) most suitable temperature.
  • Although many species of Star Fruits are available in the market, its dwarf species ‘Maher ‘ and ‘Hawaiian’ are the most suitable for growing in the containers.
  • For potted star fruit rich loamy and medium acidic soil is good, pH should be 5.5-6.5.
  • Do not overwater because it is very sensitive.

Harvesting star fruits

  • Star fruit trees begin to bear fruit in about 2 to 3 years.
  • When its fruits begin to become yellow, then it becomes mature. If you prefer sourer then pick it (green) before mature.

Pests and disease star fruit tree

A lot of bugs attack on the Star Fruit trees. Which includes plumose and philephedra scales that attack leaves and twigs. Diaprepes weevil attack the roots. Smelly insect and squash bugs damage its fruit. Red colored leaves and various types of spots are due to fungal diseases. Twigs and limbs are attacked by the red alga. Read More.

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Star fruit

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