Kadam

Neolamarckia cadamba is native to South and Southeast Asia.

• Distributed across India, Bangladesh, Nepal, Sri Lanka, Myanmar, Thailand, Laos, Vietnam, Cambodia, Malaysia, Indonesia, southern China (Yunnan), and the Philippines
• Found in moist deciduous and semi-evergreen forests, typically along riverbanks and in valleys
• Occurs from sea level to approximately 1,500 m elevation
• Prefers warm, humid conditions with annual rainfall of 1,500-5,000 mm
• The species has been widely planted outside its native range in tropical Africa, South America, and the Pacific as a forestry tree
• First described as Nauclea cadamba by Roxburgh, later transferred to Neolamarckia by Bosser
• The Kadam tree holds deep cultural and religious significance in India, where it is associated with Krishna worship and the monsoon season

A large, fast-growing, deciduous tropical tree with a distinctive cylindrical trunk.

Trunk and Crown:
• Height: 20-45 m with a clean, cylindrical bole of 9-15 m
• Trunk diameter: 50-120 cm, with small buttresses in older trees
• Bark: gray to grayish-brown, smooth in young trees, becoming longitudinally fissured and peeling in thin flakes with age
• Crown: dense, spreading, umbrella-shaped to broadly conical
• Branches arranged in tiers, giving a pagoda-like appearance in young trees

Leaves:
• Simple, opposite, broadly elliptic to ovate, 15-30 cm long and 8-20 cm wide
• Dark glossy green above, paler beneath, with prominent parallel lateral veins
• Young leaves are often bronze to reddish before maturing to green
• Petioles 1-3 cm long; stipules interpetiolar, deciduous

Flowers:
• Arranged in dense, solitary, spherical heads (capitula) 3-5 cm in diameter
• Individual flowers are small, numerous, tubular, orange to golden-yellow
• Each flower head contains 50-100 individual florets
• Extremely fragrant, with a sweet, clove-like scent
• Flowering occurs during the monsoon season (June-September in India)

Fruit:
• A fleshy, globose to ovoid aggregate fruit (syncarp) 4-6 cm in diameter
• Orange to yellowish-orange when ripe, composed of numerous small, fused carpels
• Contains numerous tiny seeds approximately 2 mm long
• Fruits are eaten by bats, birds, and monkeys, which disperse the seeds

Kadam is a pioneer and light-demanding species in tropical forest ecosystems.

• A fast-growing pioneer that colonizes forest gaps, riverbanks, and disturbed areas
• Flowers are pollinated by insects, particularly beetles, flies, and bees attracted to the strong fragrance
• Fruit dispersal is primarily by bats and birds, which consume the fleshy aggregate fruits
• Seedlings are intolerant of heavy shade and require open conditions for establishment
• Plays a role in watershed protection due to its preference for moist, riverside habitats
• The deciduous habit allows soil enrichment through leaf litter decomposition during the dry season
• Supports a wide range of insect species, including pollinators and herbivores
• Can form pure stands in secondary forests and along floodplains

Kadam is one of the easiest tropical trees to cultivate.

• Thrives in hot, humid tropical to subtropical climates
• Prefers deep, moist, well-drained alluvial soils but adapts to a wide range of soil types
• Propagation is primarily by seed; seeds should be collected from ripe fruits and sown fresh
• Germination rate is typically 60-80% within 10-30 days
• Seedlings grow extremely fast, often exceeding 2 m in the first year
• Requires full sun for optimal growth; shade-tolerant only in the seedling stage
• Planting density of 400-800 trees per hectare for timber plantations
• Responds well to irrigation and fertilization
• Can be coppiced and pollarded for pole and fuelwood production
• Rotation cycles of 8-15 years produce merchantable timber