some pictures would really help us help you, can give much better advice if I know what Im talking about ..
but if it was me, with green, healthy, two months old veg. plants, I know will begin to flower in a months or so, I would look in to a bloom fertilizer for that time
in general, a plant in veg only need 1/3 of the nuts a flowering plant use and in another ratio (more P and K then N)
as your outdoors, and I don't know if its gorilla or in your backyard and I don't know if you get plenty of rain or if you water them self every other morning ?
I cant really advice you on what kind of bloom nuts you should go for
agin if it was me I would have mixed it in with the soil and/or dropped a few nuts sticks/balls in there if its gorilla, if its in my back yard and I do most of the watering, I would get some liquid and add it to the water, another option I probably would go for is some dry Bat guano powder, to top dress/work in to the top soil before watering
here is what I use (indoors) in flowering
the white box with blue lit is the dry bat guano powder, cost like 20$ for a Kg and a few ts on top of your soil before you water is enough, I do it a few times doing flowering (agin indoors, outdoors is different if you get heavy rain it might be a wast so to speak, so plan ahead)
So what ya think now? 
Hey fellow green thumbs,....its the GOAT, what can you tell me about my two girls, one is a BlueCheese lover, who is getting bushy
