Weird for sure... but the stomata are on the underside... If I had to guess, my hunch would be that flipping allows the plant to transpire much much faster and cool itself off. But this is just a totally wild and uneducated guess.
stinkyattic Reviewed by stinkyattic on . Upside Down Leaves Every now and then I'll have a leaf spin around upside down on me. Last night I did a res change and this morning each plant has an upside down leaf. Btw, my lights are on evenings, off daytime so the lights have been on all night since the res change. Is it reacting to a pH difference or....? I did increase the nutrients but only from 800ppm to 880. I may have lowered the light a bit too since they are stretching some but it's plenty cool in there, not over 80. I know this is Rating: 5