7 hours ago
Rather than waiting eight weeks for a slow sativa to show preflowers, take a small cutting from each plant and root it under 12/12 in a separate space. The cuttings show sex within two weeks while the mothers keep vegging, so you cull males before they take up flowering room. This method is laid out step by step on https://hazesativaseeds.com, with a note on keeping the cuttings small so it stays manageable. More effort up front, but it saves space on regular seed runs.
