I have a 6 foot tall Jet Fuel plant in a 5 gallon smart pot with Fox Farm soil. I noticed a couple of the bottom fan leaves were starting to turn a little light green, not quite yellow. It's pretty much at the base of the plant. The other GG #4 plants around it seem fine. Does anyone know if this is normal or should I be concerned? This is growing in a 7' tall greenhouse. Any help would be appreciated, thanks!
Your plants look great. It's normal for lower fan leaves to turn yellowish like that, especially when the plant is so tall like yours. When they get close to flowering, I usually cut those leaves so the plant focuses its energy on the buds rather than the leaves. For now, I'd say you're fine