How to Grow Langsat Komersial
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Langsat Komersial
Lansium parasiticum
treeLangsat Komersial is a commercial cultivar of the tropical fruit tree native to Southeast Asia, known for producing clusters of small, golden-yellow fruits with a slightly acidic, sweet flavor. This variety has been selected for improved fruit size, yield, and market appeal compared to wild types. It grows as a medium-sized evergreen tree, typically 20-40 feet tall, and is widely cultivated in Indonesia, Thailand, and other tropical regions.
When should you plant Langsat Komersial in your zone?
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Example Langsat Komersial timeline · Pittsburgh, PA (Zone 6b)
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Plant Langsat Komersial
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Langsat Komersial
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 10b-11, requiring consistently warm, tropical conditions year-round
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Get my Langsat Komersial timeline →Growth Stages
Establishment (Young Tree)
1-2 yearsNewly planted tree (1-2 years) develops root system and establishes main framework. Trunk and primary branches elongate with vigorous green growth.
Stake young tree to prevent wind damage; apply mulch around base; prune to establish strong central leader; maintain consistent moisture; avoid heavy fruit-bearing pressure
Vegetative Growth
2-4 yearsTree develops dense canopy with glossy, compound leaves (3-9 leaflets). Branches multiply and thicken as tree gains height and girth.
Continue pruning to shape tree and improve light penetration; apply balanced fertilizer quarterly; maintain deep mulch layer; control competing weeds; monitor for pests
Flowering
3-8 weeks per flowering eventSmall, greenish-yellow flowers appear in panicles (clusters) along branches, typically once or twice per year. Flowers are fragrant and attract pollinators.
Avoid over-fertilizing with nitrogen which reduces flowering; ensure adequate potassium and phosphorus; maintain consistent watering; thin flower clusters if needed to direct energy to viable fruits
Fruit Development & Maturation
8-12 weeksSmall green fruits develop in clusters; gradually enlarge and turn golden-yellow over 2-3 months. Thin fruits early to achieve larger individual fruit size; skin becomes smooth and glossy.
Thin fruit clusters to 3-5 fruits per cluster for larger commercial fruit; maintain consistent soil moisture; increase potassium and phosphorus; avoid water stress which causes fruit drop
Harvest & Post-Harvest
Ongoing harvest 3-6 weeks per seasonMature fruits are fully golden-yellow, fragrant, and reach 1-1.5 inches in diameter. Flesh is translucent-white, juicy, with 1-2 large seeds; slightly acidic-sweet flavor.
Harvest by cutting clusters with sharp pruning shears; handle carefully to avoid bruising; store at 12-15°C with good ventilation; fruits have moderate shelf life of 1-2 weeks; plan pruning strategy post-harvest
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Install fruit fly traps; bag developing fruit clusters with paper bags; maintain sanitation by removing fallen fruit; use pheromone traps for monitoring
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Prune heavily infested branches; spray horticultural oil or insecticidal soap; introduce natural predators like ladybugs; avoid broad-spectrum insecticides that kill beneficial insects
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Spray with neem oil or insecticidal soap; remove by hand on smaller trees; encourage beneficial insects; use sticky traps for monitoring
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Improve air circulation through pruning; apply sulfur dust or fungicide; reduce humidity where possible; remove infected leaves; apply in early morning or evening
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Prune and remove infected fruit and branches; apply copper fungicide; improve drainage and air circulation; avoid overhead watering; sanitize tools between cuts
Uses
Fresh fruit consumption and tropical desserts
CulinaryLangsat fruits are eaten fresh as table fruit, prized for their translucent, juicy flesh and delicate sweet-acidic flavor. They are used in tropical fruit salads, smoothies, and traditional Southeast Asian desserts. [source]
Juice and beverage production
CulinaryFresh langsat juice is consumed as a refreshing tropical beverage, and the fruit is used to make jams, preserves, and concentrates. The high vitamin C content makes it valuable for functional beverages. [source]
Traditional folk medicine applications
MedicinalIn Southeast Asian traditional medicine, langsat fruit, leaves, and bark are used to treat fever, cough, digestive issues, and general malaise. The plant contains compounds with antioxidant and anti-inflammatory properties. [source]
Natural insect repellent
HouseholdLangsat leaves contain aromatic compounds historically used as natural insect repellent in homes and stored grain, providing pest control without synthetic chemicals. [source]
Pollinator and wildlife support
WildlifeThe fragrant flowers attract bees, butterflies, and other pollinators, supporting local pollinator populations and contributing to garden biodiversity in tropical regions. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest fruits when fully golden-yellow and fragrant, typically when they yield slightly to gentle pressure. Cut fruit clusters with sharp pruning shears rather than pulling to avoid branch damage. Morning harvest is preferred for better flavor and shelf life. Fruits are best consumed fresh within 1-2 weeks but can be refrigerated at 12-15°C. For commercial markets, harvest at full color maturity. Peak harvest season varies by region but typically occurs once or twice yearly.
Fun Facts
- 🌱 Langsat is also known as 'duku' in some regions, and the two names are sometimes used interchangeably, though duku typically refers to a closely related species (Lansium domesticum) with sweeter, larger fruit.
- 🌱 The commercial cultivar 'Komersial' was specifically selected and propagated in Indonesia and Thailand for superior fruit quality and yield, making it the preferred choice for export markets and large-scale cultivation.
- 🌱 Langsat trees can live for 50+ years and continue producing fruit, with mature trees in their prime yielding 200-400 pounds of fruit annually under good management.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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