What is the fastest way to germinate lavender seeds?
Written by
Kiana Okafor
Reviewed by
Prof. Charles Hartman, Ph.D.Lavender seeds require special treatment to germinate quickly. The quickest (best) method is cold stratification and then consistent warmth. This mimics nature's winter conditions, which initiate germination. If you skip this step, the seeds will sprout slowly or not at all. Not only does the method I use work, but it also really reduces germination time.
Cold Stratification
- Prepare seeds in moist paper towels inside sealed bags
- Refrigerate at 34-40°F (1-4°C) for minimum three weeks
- Check weekly for early sprouts needing immediate planting
- Avoid freezing which damages delicate seed embryos
Post-Stratification Care
- Surface-sow seeds on moist seed-starting mix without covering
- Maintain 70-80°F (21-27°C) using seedling heat mats
- Provide 16 hours daily of bright light immediately
- Mist surface when drying occurs to prevent desiccation
After stratification, light exposure is key. The seeds from lavender benefit from light on the surface, as this triggers the growth hormones. I place them under my grow lights as soon as I sow the seeds. In low-light conditions, you get leggy, weak stems. Direct sunlight will also work if it is consistent.
Consistent temperatures prevent germination issues. Exposure to temperatures outside of 70-80°F (21-27°C) can cause seeds to stop germinating altogether. Heat mats consistently warm the seeds more effectively than room air can. I first lost two batches of seeds before finally purchasing thermostatically controlled heat mats. Now I get uniform germination.
Managing moisture is the key to the difference between success and mold. Bottom watering/hydration prevents disturbances to the surface of seed beds after sowing. I learned that the hard way with misting indiscriminately and washing away little roots. I've used plastic domes to cover trays, keeping things humid without making them waterlogged.
Read the full article: How to Grow Lavender From Seed Successfully
