Description
Samanea saman, commonly known as the rain tree, is a large, iconic tropical tree prized for its majestic, wide-spreading, umbrella-shaped crown that provides excellent shade. Native to Central and South America, this fast-growing species is now cultivated across the tropics. A distinctive feature of the tree is its bipinnate leaves, whose small leaflets fold up in the evening and during cloudy or rainy weather, a behavior that gives the tree its common name.
The rain tree also produces beautiful, fluffy pink and white flowers and long, indehiscent pods containing a sweet, edible pulp. Its durable, attractive wood is highly valued for crafting furniture and the famous “monkeypod” bowls from Hawaii, while the pods are used as nutritious fodder for livestock.
Germination Guide
🌍 Central and South America, from Mexico to Peru and Brazil
Easy
Samanea saman is a semi-deciduous tropical tree native to Central and South America, known as Rain Tree or Monkey Pod. It thrives in tropical climates and is valued for shade, timber, and fodder production.
Germination
Germination time
Expect germination in
6 – 8 days
Temperature
Min 20°C
Ideal 25°C
Max 35°C
Substrate moisture
💧💧 High
Seed Pre-treatment
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💧
Soaking — 24 hours
Soak seeds in warm water for 24 hours to soften the seed coat and expedite germination
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🔨
Hot water scarification
Hot water treatment for 3 minutes followed by overnight soaking in cool water breaks dormancy. Alternatively, mechanical nicking of seed coat.
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📋
Additional notes
Mature seeds have a hard seed coat requiring treatment for uniform germination. Fresh, moist seeds germinate freely without pre-treatment.
Substrate & Container
Recommended substrate
well-drained, loamy or sandy soil
Recommended container
containers with good drainage
Growing Tips
Fresh seeds germinate without treatment; dried seeds need hot water scarification. Germination is epigeal (above-soil emergence). Seedlings can be transplanted 6-8 weeks after germination when 15-25 cm tall. Seeds tolerate storage; germination improves during first year of storage.
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