If applying in spring, wait until the lawn is actively growing and has been mowed at least twice. Regardless of what kind of cannabis seeds you choose to plant, there are a couple of things to look out for to ensure that they are ready and capable of germination. If it s after mid September, we re going to need to discuss your expectations and your goals as we make a decision on what s best for your lawn. Source: https://weedseedscrop.com/where-t....ailable