You can switch as soon as a couple days after transplanting. Give her 24 hours darkness before you change your light to 12/12 cycle will help flowering a bit earlier than normal.
cnd411 Reviewed by cnd411 on . Flowering Question How Soon after transplanting can i switch to 12/12 ? on 11/14/05 She will be 45 days old thats when i was planning to start to flower. Just Transplanted her Thismorning . P.S. I am Using CLF's Rating: 5