Lanzones (Lansium domesticum) are tropical fruit trees that grow 35 to 40 feet tall. They are native to Malaysia and are grown in Thailand, Vietnam, Hawaii and other Pacific Islands. They only grow in Zone 11 and will lose their leaves if the temperature drops below 40 degrees. The fruit has a tart to sweet citrus flavor, depending on the variety. It is oval or round with grayish yellow to brownish pink skin. It contains five or six sections of translucent fruit with large green bitter seeds. There are many local names for lanzone, including lansone, lansa, lansep, langsat and kokosan.
If the tree you have purchased arrives bare root and you are not ready to plant it in the ground, plant it in a pot of potting soil big enough to hold the root ball without squeezing or breaking the roots. Water the tree thoroughly with a water hose or watering can and set the pot in a shady location until you are ready to plant the tree. If the tree is already in a pot, water it well and set it in a shady location.
Choose a location in partial shade to full sun with rich well-drained soil. Use a shovel to dig a hole wide and deep enough to hold the rootball of the tree without crushing or breaking the roots.
Remove the tree from the pot and set the tree into the planting hole. Push the soil into the hole around the rootball. Do not plant the tree deeper than it was planted in the pot you bought or deeper than the soil line on a bare-root tree. Tamp the soil down firmly with your hand or foot. Spread excess soil in a thin layer around the tree.
Spread a 2- to 3-inch layer of mulch around the tree. Do not mound the mulch up on the trunk of the tree.
Water the tree thoroughly with a hose or watering can. Keep the tree well watered for at least 2 years after planting.
Things You Will Need
- Potting soil
- Watering can or water hose
- Lanzone trees need plenty of moisture and will not tolerate long dry periods.
- Newly planted trees may need protection from the sun until they are established. If the trees are planted in full sun, you can erect a canopy of shade cloth over the tree to protect it.
- Lanzone trees will not grow in alkaline soil. They cannot withstand having wet feet or being waterlogged.
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