Depends on strain and technique(s) used, and how much headroom you've got. But if you don't top or take clones, (or otherwise injure the plant) 5 to 6 weeks is a good generalization. Once she starts alternating the internodes, she's ready any time you are.

Once in flowering, they'll start the stretch. About a week or so later you'll see the buds forming. Ya can't miss 'em, lol.
Rusty Trichome Reviewed by Rusty Trichome on . how many plants under 1 600w light Hi people im just wondering how many plants i should put under each 1 of my 3 600w lights and i know i should rotate my plants but is there a way i should place them under it as i got 2.5 oz on each plant last time and i was told i should be looking for 4-5oz oer plant hope some1 can help if you have any pics to show that would be great thanks people Rating: 5