Neem (Azadirachta indica)
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About this plant
Azadirachta indica, commonly known as neem, is a fast-growing evergreen tree native to the Indian subcontinent. It is valued for its medicinal properties and natural insect-repellent qualities. Neem leaves, bark, and oil are widely used in traditional medicine and organic farming. The tree has pinnate leaves and small white flowers, followed by smooth green fruits that turn yellow when ripe.
Taxonomy
Higher classification: Order Sapindales
Origin & Distribution
- Native region
- India, Pakistan, Bangladesh, Sri Lanka
- Distribution
- Native to India, Pakistan, Bangladesh, and Sri Lanka; widely cultivated in tropical and subtropical regions worldwide.
Care
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, Southwest-facing, West-facing
- USDA hardiness zones
- 9-11
- Soil pH
- 6.2-7.0 (slightly acidic to neutral)
- Soil type
- well-draining loam or sandy soil
Watering. Water neem trees moderately, allowing the soil to dry out between watering. Overwatering can cause root rot, so ensure good drainage.
Fertilizing. Neem trees benefit from light fertilization during the growing season with balanced, slow-release fertilizer. Organic compost or manure can also be applied annually to support healthy growth.
Neem is a hardy tree that grows well in warm climates with plenty of sunlight. It prefers well-draining soil and can tolerate drought once established. Overwatering or poor drainage can cause root problems. Regular pruning helps maintain its shape and health.
Propagation
- Propagation methods
- Seeds, Cuttings
Ornamental features
- Flowering
- Yes
- Flowering period
- spring
Glossy pinnate leaves, fragrant white flowers, and yellow fruits provide ornamental appeal.
Toxicity & Safety
Neem is generally safe but its seeds and oil can be toxic if ingested in large amounts. Keep away from children and pets to avoid accidental ingestion.
Allergy information
Azadirachta indica, commonly known as neem, may cause mild allergic reactions in sensitive individuals, especially from its pollen or sap. People with plant allergies should handle it with care and avoid direct contact with the sap to reduce skin irritation.
Common problems
Neem trees can suffer from root rot if overwatered or planted in poorly draining soil. Young plants may be vulnerable to pests like aphids or scale insects. Lack of sunlight can slow growth.
Uses
Neem is widely used for medicinal purposes, natural pest control, and as an ornamental shade tree. Its oil is used in cosmetics and organic farming.
Notes
Neem trees can grow very large outdoors but can be kept smaller with pruning. They are sensitive to frost and should be protected or grown indoors in cooler climates. Repot young plants every 2-3 years to refresh soil.