Ruqayyah Snyder
Mangosteen, or Garcinia mangostana, is a tropical fruit-bearing tree that is native to Southeast Asia. With its subtle, delicate, sweet-acid taste and unique appearance, it is often referred to as the Queen of the Tropical Fruits. Mangosteen trees are slow-growing and can take 8 or more years to bear fruit. They are also quite finicky, requiring specific environmental conditions, including a wet tropical climate, and are therefore primarily grown in North Queensland, Australia. In this article, we will explore the history of mangosteen cultivation in Australia and provide a step-by-step guide on how to grow your own mangosteen tree.
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What You'll Learn
Mangosteen trees grow best in wet tropical climates
Mangosteen trees are tropical trees that are native to Southeast Asia. They are extremely slow-growing and can take 12 to 20 years to bear fruit. The trees are very picky about their environmental conditions, which must be consistently maintained throughout their lifespan.
In Australia, the majority of mangosteen trees are grown in North Queensland, with a small number also recorded in the Northern Territory. The trees thrive in the wet tropical climate of Far North Queensland and around Darwin, where most of the fruit grown in Australia comes from.
To grow mangosteen trees in Australia or any other wet tropical climate, it is important to provide the following optimal conditions:
- Plant seeds at least 8 inches deep in rich, organic, sandy loam-amended soil with organic compost.
- Ensure the soil is a minimum of 4 feet deep and keep it moist at all times.
- Maintain daytime temperatures between 70 and 100 °F (21-38 °C) and nighttime temperatures between 50 and 70 °F (10-21 °C).
- Protect the trees from strong winds, salt spray, and drafts, which can cause temperature fluctuations and stress the trees.
- Provide filtered sunlight or partial shade exposure for up to 13 hours per day.
- Ensure high humidity levels equivalent to an annual rainfall of at least 50 inches (127 cm).
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How to plant a mangosteen seed
Mangosteen, or Garcinia mangostana, is an extremely slow-growing, ultra-tropical, fruit-bearing tree. It is native to tropical Southeast Asia, but can also be found in Thailand, Vietnam, Burma, the Philippines, and southwestern India. Growing mangosteen from seed can be challenging, as environmental conditions must be consistently maintained for 12 to 20 years for the tree to mature and bear fruit.
To plant a mangosteen seed, start by selecting a plump, fully developed seed from a ripe fruit. The seed must be removed from the fruit no more than a few days before planting. Plant the seed at least 8 inches deep in rich, organic, sandy loam-amended soil with organic compost. The soil should be a minimum of 4 feet deep. Maintain a temperature above 50 degrees F and below 100 degrees F at all times, and shelter the seedling from gusts of wind. Provide filtered sunlight or partial shade exposure for up to 13 hours per day. Keep the soil moist at all times, and maintain an environmental humidity equivalent to an annual rainfall of at least 55 inches.
Sprouting typically takes 20 to 22 days and is complete in 43 days. The young saplings take a minimum of two years to grow to 12 inches in height. After the sapling reaches a minimum of 2 feet, it can be carefully transplanted if necessary, although mangosteen plants do not tolerate replanting well. It will take 8 to 12 years or more for the tree to bear fruit.
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The ideal soil for mangosteen trees
Mangosteen trees are extremely slow-growing and can take 8 to 20 years to bear fruit. They are tropical trees that require consistently maintained environmental conditions to grow. In Australia, they are primarily grown in north Queensland, where the wet tropical climate suits their environmental requirements.
Mangosteen trees do not tolerate replanting well, so it is important to plant the seed in a space where it will not need to be transplanted for three to five years. The temperature should be closely regulated, staying between 50 degrees F and 100 degrees F at all times. The trees should be sheltered from gusts or winds and provided with filtered sunlight or partial shade exposure for up to 13 hours per day.
In north Queensland, mangosteen trees may be affected by diseases such as Pestalotia sp., which causes canker development and shoot tip dieback. This disease is more common when trees are growing poorly or have been sunburned after a rapid loss of shade. Other issues include stem canker, algal leaf spot, and sooty mould, which can be treated with fungicide copper and sulphur products.
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The growth of a mangosteen tree
The mangosteen tree (*Garcinia mangostana*) is a tropical, fruit-bearing tree that is native to Southeast Asia. The tree is slow-growing and can take 8 to 20 years to bear fruit. The tree has a pyramid-shaped crown and grows to a height of 20-82 feet (6-25 metres). The bark is nearly black and flaky, and the leaves are short-stalked, oblong, and glossy dark green on top with a yellow-green underside. New leaves are rosy red and oblong.
Mangosteen trees have specific environmental requirements and are difficult to cultivate outside of their native range. They grow best in wet tropical climates with high humidity and consistent temperatures above 50°F and below 100°F. The trees do not tolerate replanting, so it is important to plant the seed in a location or container where it can remain for at least three to five years. The soil should be rich, organic, sandy loam-amended soil with organic compost and be a minimum of 4 feet deep. The seed should be planted at least 8 inches deep and watered consistently to keep the soil moist.
Mangosteen seeds must be removed from the fruit no more than a few days before planting. Sprouting typically takes 20 to 22 days and is complete in 43 days. The young saplings take a minimum of two years to grow to 12 inches in height. After the sapling reaches a minimum of 2 feet, it can be carefully transplanted if necessary. The tree prefers filtered sunlight or partial shade exposure for up to 13 hours per day.
In Australia, mangosteen trees are primarily grown in north Queensland, with a small number of trees also recorded in the Northern Territory. The trees were first introduced to Australia in the 1940s, but initial attempts to grow them in New South Wales and southern Queensland were not successful. It was not until the 1970s that mangosteens were successfully grown in commercial quantities in the tropical north of Queensland.
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Diseases and fungicides for mangosteen trees
Mangosteen trees are highly susceptible to diseases and fungi, especially in humid climates. In Australia, the Pestalotia sp. disease is common in north Queensland, causing canker development and shoot tip dieback. Other diseases that affect mangosteen trees include stem canker, algal leaf spot, and sooty mould.
To combat these diseases, a range of fungicides can be used. Copper-based fungicides are effective against many types of fungi, including anthracnose and powdery mildew, which are common diseases affecting mango trees. Applying fungicides preventatively, especially during periods of high humidity and rainfall, can help reduce the risk of disease. It is important to follow the instructions on the label when using any fungicide product.
In addition to chemical fungicides, there are other strategies to manage diseases. These include balanced fertilisation, mulching, proper spacing between trees, and water management. Maintaining optimal nutrient levels in the soil and mulching around the base of the tree can enhance its ability to resist diseases. Adequate spacing between trees improves air circulation and sunlight penetration, reducing humidity levels and disease pressure. Avoiding overhead irrigation can also help prevent the spread of fungal spores.
Overall, an integrated approach to disease management, combining multiple strategies, is key to effectively managing diseases and maintaining the health and productivity of mangosteen trees.
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Frequently asked questions
Mangosteens are primarily grown in north Queensland, with 98.6% of total plantings in Australia. The remaining trees are found in the Northern Territory.
Mangosteens are slow-growing and have stringent environmental requirements, so their cultivation is not widely undertaken outside of their native habitat in tropical Southeast Asia. They grow best in wet tropical climates, and most fruit grown in Australia comes from Far North Queensland or around Darwin.
It can take 8 or more years for a mangosteen tree to bear fruit. Growing mangosteen from seed can take even longer, with estimates ranging from 12 to 20 years.
