Description
A large shrub or small tree to 10 m tall with soft branches, large leaves and dark reddish purple flowers followed by very strange, 5-winged, goblet-shaped seed pods. The leaves are covered in irritating hairs. Abroma augusta is widespread in tropical Asia and into the western Pacific, where it is usually found along streams and disturbed sites in rainforests from low elevations to 1100 m. The stems yield a high quality fiber that is traditionally used to make ropes, fishing nets, hammocks and other items. It is also an important medicinal plant and aphrodisiac and would be an interesting, fast growing ornamental for the tropics.
Germination Guide
🌍 South China to Southeast Asia, ranging from Himalayas and southern China through Indochina and Malesia to New Guinea and Solomon Islands
Moderate
Abroma augusta, commonly known as Devil's Cotton, is a tropical shrub or small tree native to tropical Asia. It is a fast-growing species traditionally used in Ayurvedic medicine. Seeds have low germination rates and lose viability quickly, requiring fresh seeds and water soaking pretreatment for successful propagation
Germination
Germination time
Expect germination in
9 – 30 days
Temperature
Min 20°C
Ideal 33°C
Max 36°C
Substrate moisture
💧💧 High
Seed Pre-treatment
-
💧
Soaking — 24 hours
Soaking in water for 24-48 hours improves germination. Alternative: soaking for 15 minutes at 28°C
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📋
Additional notes
Fresh seeds should be used as seeds show low germination rates and lose viability quickly. Use recently harvested seeds for best results
Substrate & Container
Recommended substrate
organic loam with siliceous sand or agri-perlite for drainage; well-drained fertile soil
Growing Tips
Maintain humidity during germination. Seeds germinate faster and achieve higher germination percentage at 33°C compared to 20-25°C. Sowing depth of 7cm gave better results than shallower sowing. Plant requires full sun and well-drained soil. After germination, first flowering occurs after about 4 months under optimal conditions
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