lipskilet Active Member Mar 10, 2009 #1 What is popular opinion on when to switch to HPS from MH... first day of 12/12? After a week? Two? The thought being that if the plant sees a switch of light hours AND spectrum it might freak out and think is late...going male or hermie.
What is popular opinion on when to switch to HPS from MH... first day of 12/12? After a week? Two? The thought being that if the plant sees a switch of light hours AND spectrum it might freak out and think is late...going male or hermie.
AeroKing Well-Known Member Mar 11, 2009 #2 Keeping the plants under mostly blue light (MH) for the first 2-3 weeks of flowering can significantly reduce stretch.
Keeping the plants under mostly blue light (MH) for the first 2-3 weeks of flowering can significantly reduce stretch.
