Arisaema tortuosum is a distinctive perennial aroid with twisted, whip-like spathe appendages and mottled stems. Native to Himalayan forests and alpine meadows, it reaches 0.6-2m height.
Before sowing
Conflicting data: some sources recommend cold stratification (3-4 months at 4°C), others indicate no stratification needed. Soaking appears essential to remove seed coating.
Sowing
What to expect
Tips
Best sown fresh as soon as ripe in cold frame; stored seed viable for minimum 1 year. Seed soaking critical to remove germination inhibitors. Avoid artificial heat which disrupts germination. Patient waiting essential - germination erratic and may take 1-6 months. Grow seedlings in light shade for 2+ years until corms exceed 20mm diameter before outplanting.
Sources: PFAF (Plants For A Future), Scampton Succulents Arisaema database, Jungle Seeds UK, Plant World Seeds, Houzz forums, academic sources
