How to grow Lavender Seeds
Growing lavender from seed is not difficult, but it does require patience and following some specific steps. Lavender seeds can take up to two years to bloom from the date of sowing.
Cold Treatment
Lavender seeds need a cold period to regulate germination and break dormancy. Direct seeding in the garden during winter is the most natural method, allowing the seeds to receive the cold exposure they would naturally encounter in the wild.
Indoor Germination
If starting lavender seeds indoors, scatter the seeds on a moist, but not soggy, paper towel. Place the towel in a sealed plastic bag and store it in the refrigerator for 30 to 40 days.
After Cold Treatment
After this cold treatment, remove the bag, discard it, and place the paper towel in a sunny spot by a window. The seeds should germinate on the moist paper towel within 7 to 14 days.
Sowing & Seedling Care
When sowing, it is important not to bury the seeds too deeply. Once the seedlings are large enough to handle, thin them out to about 5 cm apart.
Planting Out
Gradually acclimatize the plants to outdoor conditions over 7 to 10 days before planting them outdoors in well-drained soil in full sun, once all risk of frost has passed.
Growing Notes
Growing from seed offers the advantage of more vigorous, diverse plantings that are highly resilient to pests and diseases. Wait until spring to prune mature plants to prevent the lavender from becoming too woody.
By following these steps, you will be rewarded with beautiful, healthy lavender plants that can thrive for years.