Aconitum heterophyllum, critically endangered medicinal herb of the northwestern Himalayas used for centuries in Ayurveda for antipyretic, anti-inflammatory, and antidiarrheal properties. Seeds are very small, require cold stratification to break dormancy, and show poor germination in natural conditions, making propagation challenging.
Before sowing
Cold stratification is most effective treatment; pre-chilling for 15-90 days enhances germination; seeds best sown immediately when ripe in cold frame
Sowing
What to expect
Tips
Best propagation method: sow seeds immediately when ripe (Sept-Oct) in cold frame outdoors for natural stratification; if stratifying artificially, apply 60 days cold at 4°C then sow in spring but germination will be slow; seedlings grow in cold frame through first winter; prefers moist, shady, slightly acidic soils; extremely slow growth rate; seed viability decreases rapidly after collection; plant is endangered - sustainable cultivation recommended
Sources: PFAF Database, FAO AGRIS, Biotechnology journal (Srivastava et al. 2011), Scientific Reports (2025), Nature.com, ResearchGate publications on Aconitum propagation
