Using Day/Night tempature difference to control stretch?


Well-Known Member
I have done some reading about day/night temp difference.

Generally speaking. The higher the differential the more stretch and node spacing.

The closer the differential the less stretch and tighter nodes.

I came across some instances where they had a night temp equal to or greater than the day temperatures. Giving tighter thicker plants. (Not Cannabis related).

I was wondering if anyone has done this through the initial flower stretch?

I’m thinking of trying to keep the temperature difference minimal during the first two weeks of flower. Or until the vertical growth slows/stops.

This should make real tight node spacing on the colas?

What are your thoughts?


Well-Known Member
its light color that dictates the growth of plants 2700 kelvin for the stretch

and 6500 kelvin for that horizontal squat look

post ya links