Can I plant lavender seeds directly in the ground?
Written by
Kiana Okafor
Reviewed by
Prof. Charles Hartman, Ph.D.Sowing lavender seeds directly in the soil can be difficult. Growing success all comes down to having the Mediterranean conditions exactly right. Most areas lack the climate stability required for direct sowing to be feasible. Knowing these truths will save both the labor and the seeds. If you are located in ideal planting areas, proper preparation for outdoor planting is entirely possible.
Climate Conditions
- Mediterranean-like zones with mild wet winters and dry summers
- Consistent temperatures between 50-70°F (10-21°C) during germination
- Low humidity below 40% to prevent fungal issues
- Full sun exposure with minimal frost risk
Soil Preparation
- Sandy soil amended with 50% grit or perlite for drainage
- Surface raking creating fine tilth without deep burial of seeds
- pH adjustment to 6.5-7.5 using garden lime if needed
- Wind protection using low barriers without shading plants
Timing is everything for direct sowing attempts. Sow seeds a full 6 weeks before your last frost date in your area. Soil temperatures must be maintained at a constant 60°F (15°C) for success. I attempted this in September in Oregon - a complete failure, as the fall rains drowned all the seeds before they could germinate.
Hardening off transplants requires gradual exposure. Move indoor seedlings outdoors for one hour daily. Increase exposure by two hours each day over two weeks. Protect from wind and intense sun initially. This prevents transplant shock, which can kill delicate lavender starts.
Mediterranean climates, such as those found on California's coast, have the highest potential for direct sowing. I would still use protective cloches during germination. Birds and insects routinely eat unprotected seeds! Light row covers can keep out birds and insects while allowing light to get through.
If your climate is challenging, explore other options. In particular, cold frames enable a significantly longer planting season. I have had decent luck with frames, sowing in October. The additional warmth and protection replicate more ideal conditions. Once the seedlings produce true leaves, take off the covers.
Read the full article: How to Grow Lavender From Seed Successfully
