Fan leaves yellowing at week 4 of Flower

drdank50 · Oct 2, 2010

It looks like the leaves here are all starting to turn yellow at 4 weeks of flowing. Should this be happening so soon? What can I do to prevent it if not? Here's some pics. Appreciate the feedback thanks!

Mother's Finest · Oct 2, 2010

Potassium deficiency. Give them a good dose of some organic high-K ferts.

Mother's Finest · Oct 2, 2010

They probably need some N as well.

drdank50 · Oct 2, 2010

Im giving them the fox farm trio hydro. Grow big, big bloom, and tiger bloom. Since its 4 weeks im still / have been giving them fertilizer, yet the leaves still yellow.

HowzerMD · Oct 2, 2010

They look lacking in Nitrogen for the most part. If you're using Fox Farm it's ok to split the difference between grow big and tiger bloom so you have extra N. For example : I use 17ml of grow big and 17 ml of big bloom per 5 gallons at about where you are in flowering. If it keeps em green, go for it. I usually don't ease over to all tiger bloom until around week 5-6.

Fan leaves yellowing at week 4 of Flower

drdank50

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