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. However, growing from seed offers the advantage of more vigorous, diverse plantings that are highly resilient to pests and diseases. 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.
If starting lavender seeds indoors, you can replicate the cold exposure by scattering 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 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.
When sowing, it's important not to bury the seeds too deeply. Once the seedlings are large enough to handle, thin them out to about 5 cm apart. 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. Wait until spring to prune mature plants to prevent the lavender from becoming too woody. By following these steps, you’ll be rewarded with beautiful, healthy lavender plants that will thrive for years.