Quote Originally Posted by khyberkitsune
I let my plants get to a foot tall before flowering and pulled 3 oz per plant. Imagine two feet before you flower.

It works due to the MH putting out more blue and also a bit more UVB radiation (despite the filtering borosilicate glass shell.) This increases trichome production and thus THC content versus other cannabinoids.

I've included two pics - the first one is of my (poorly-done and heavily-burned) red-dominant LED grow. Notice there's some frosting, but not much.

Second pic is under blue-dominant lighting. Notice how much more frosty it has gotten (and it even suffered the same burning.) it's about three weeks behind the red-dominant one on flowering, as well. had I not let it burn, odds are the entire plant would look like I tried spraying it with that glass grit crap the poor guys in southern UK get to increase their yield.
wow, yea. The second one deff looks more frosty. Lets say if my plants grew up to 6' would my vertical setup work with plants that tall? Also, during veg should I keep the light vert or hori?