Here are five short germination tips for Delphinium crassifolium seeds:
 
Cold Stratification – Store seeds in a moist paper towel inside a sealed plastic bag in the refrigerator (2–5°C) for 3–4 weeks before sowing.
 
Sowing Depth – Lightly cover the seeds with a thin layer of soil (about 2–3 mm deep) in well-draining soil.
 
Moisture & Temperature – Keep the soil moist but not waterlogged, and maintain a cool temperature of 10–15°C for better germination.
 
Darkness for Germination – Cover the seed tray with a dark material or place it in a shaded area since Delphinium seeds prefer darkness to sprout.
 
Patience & Ventilation – Germination can take 2–6 weeks, so be patient and provide good airflow to prevent mold and damping-off.