• I was having some signs of deficiency in week two of flower. The middle of the leaves of new growth was yellow. Thinking it was an iron or zinc issue. I have been feeding a folliar feed of on teaspoon chelated iron one teaspoon chelated sink and 5ml calmer per gal of water. Been using this for a week now. The be growth is coming in nice and green. But the leaves that yellowed in the middle are still yellow. Is my deficiency corrected and how do I know when it is fixed??

      pungolian and plantparenthood
      4 Comments
      • How does your new growth look? if it is healthy and lush your on the right track. So deficiencies will not ever correct the damage is done and will not correct in old leaves. And yellowing of the leaves have you looked into magnesium deficiencies at all? They are pretty common in flower. If it is a magnesium deficiency you can foliar feed epsom salt and the yellow leaves will turn green:)

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        • Try optic foliar overgrow. Opticfoliar.com I think the coupon code is dude. (I could be wrong)

          • More cal mag!

            • Without seeing a pic we can really only guess. During stretch when the plants start to consume a lot more. You can get yellowing in the new growth. It should green up throughout the day or catch up at some point. I heard someone on the show one time say it’s a sulfur issue. They are just burning right through it. Maybe some magnesium sulfate, if it’s not greening up to your liking.

              Remember there is an explosion of growth when you switch to 12/12. There is some growing that is going to happen overnight. Once they get some light on that new growth, it should green up. If not then your looking at a deficiency.