Cedrus deodara, commonly known as Deodar or Himalayan Cedar, is a large evergreen coniferous tree native to the western Himalayas, valued for its graceful, drooping foliage and rot-resistant timber. Seeds require cold stratification to break dormancy; a short period of moist, cool conditions at 4°C for 14-30 days significantly improves germination rates and is essential for successful propagation. After pre-treatment, seeds germinate in 2-8 weeks when kept at optimal temperatures of 15-20°C in well-draining soil.
Before sowing
Cold stratification in moist sand or peat moss at 4°C (39°F) for 30 days increases germination from 11% to approximately 45%. Stratification period can range from 2-4 weeks to 30-60 days depending on seed lot.
Sowing
What to expect
Tips
Sow seeds 3/4 inch deep, tamp the soil firmly, and mulch the seed bed. Keep soil consistently moist but not waterlogged during germination. After germination, maintain indirect light and provide good ventilation to prevent damping-off disease, which young seedlings are very prone to. Once stratification is complete and 10% of seeds have chitted, begin sowing. Keep seedlings in containers indoors for several years before transplanting outdoors. Use large-sized seeds when available, as they exhibit higher germination rates. After stratification, move seeds to room temperature (20-22°C) for final germination phase.
Sources: Forest Research UK; University of Florida IFAS; PFAF Database; Academic research on Cedrus deodara germination; Gardening Know How; Sheffield's Seed Company; Botanical sources (2024-2026)
