Can't get marijuana to flower


A question from a fellow grower:

can’t get my plays to trigger to flower have light’s 12-12 but no white hairs yet what’s wrong 2 150 watt hps 4-4 foot florescent bulbs


Can you upload a picture? Without more information; it is going to be hard to guess.

How long have you been under 12/12?


Maybe this article will help: