Lavender seeds take 12-21 days to sprout and will be ready to start harvesting in 2+ months. Continuous harvesting will encourage a bushy plant and greater yield.
Flowers require at least 6 hours of direct light daily and should be put in an unobstructed window that faces south, west, or east (southwest is the best option). During winter months—or if you don’t have an unobstructed window—you can supplement with a grow light.
The plastic pot and recycled glass grow medium can both be reused—simply rinse with hot water. Add new seeds and use soil or coco pith to help seeds germinate. Use a water-soluble fertilizer and follow its instructions.
Grow Kits are designed for indoor use but can be put outside. Be mindful that the planter does not have a drain hole, and if the reservoir floods it may drown the roots. Bring your Grow Kit inside if temps dip below 55° or above 80°.
A lavender plant will continue to grow for many months with sufficient nutrients and light.