Fresh seeds to sow

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How to GerminateAlbizia lebbeck

Albizia lebbeck

Woman's Tongue, Lebbeck, Indian Siris, East Indian Walnut
Native · Indian subcontinent and Myanmar
Difficulty
facil
Temperature
25°C ideal
Germination
4–25days
after pre-treatment
Success rate
~80%
Light
indiferente
Sow depth
levemente_coberta

Albizia lebbeck, commonly known as Woman's Tongue or Lebbeck, is a fast-growing legume tree native to the Indian subcontinent and Myanmar, widely cultivated in tropical and subtropical regions. The species exhibits physical seed dormancy due to its hard seed coat, but germination can be readily improved through simple mechanical scarification or hot water treatment. Under optimal conditions with properly pretreated seeds, germination occurs within 4-25 days.

Before sowing

Scarification
quimica Mechanical scarification (nicking) produces highest germination (80-100%). Chemical scarification with sulfuric acid for 10-15 minutes (not more than 15 minutes) or hot water treatment (80-100°C for 1-3 minutes) are effective alternatives. Some seeds germinate without treatment.
Soak
24 h Soaking in hot water (80-100°C) for 1-3 minutes or cold water for 24 hours improves germination. Some sources recommend soaking in water at 50°C for 3 minutes. Ensure seeds do not overheat as thin-skinned seeds may be damaged.

Combination of nicking and large seeds produces optimal germination (100%). Seeds naturally exhibit physical dormancy due to hard seed coat. Some seeds germinate immediately without any treatment. Select larger seeds for best results.

Sowing

Substrate
Well-drained loamy soil, sand, or paper. Fertile, moist soil preferred but can tolerate poor soils.
Depth
levemente_coberta
Temperature
25°C
Moisture
media
Container
Polythene tubes (10 cm) or seed trays with well-drained potting mix
Day/night swing
Alternating temperatures of 25-35°C or 20-35°C are effective. Constant temperatures of 25, 30, and 35°C are also suitable. Seeds are insensitive to light.

What to expect

Step 1
Pre-treat the seed
Step 2
Sow at levemente_coberta · 25°C
Day 4–25
Seedlings emerge (~80%)

Tips

Select large seeds over small ones for superior germination rates. Mechanical scarification (nicking) is the safest and most effective pretreatment method. If using hot water, cool it overnight before sowing. Some seeds germinate naturally without treatment; patience is recommended as dormant seeds may germinate later. Maintain medium moisture in substrate—not waterlogged. Seedlings require bright light and warm conditions but are light-indifferent. Use polythene tubes (10 cm) for easy nursery handling and transplanting.

Sources: ResearchGate (Missanjo et al. 2013, Azad et al. 2006), Hindawi journals, Tropical Forages database, Australian Seed, Lucid Central rainforest guide, World Agroforestry Centre

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