This article was originally published on the Marijuana Patients Organization site on August 14, 2012.
I know that I need to change my bulbs when i am switching to flower to HPS but i cant afford them right now. How much would my yield decrease by keeping mh lights all through flower? ANything else i should do different have had 6 grows but always used hps at flower and want to know what could go wrong with my garden.
Try to use mercury halide (MH) bulbs to get bigger yield, 25% or more yield, if at all possible. You will wish you would had, since mh bulbs give blue spectrum the plants need. Always use mh for vegging and hps for flower.