Iron vs Chelated Iron

mike423(5 IL)January 11, 2011

Don't know how much this applies to Hydroponic gardening seeing as it would be applied to potted plants, but I couldn't find another forum that seemed more suitable to my question.

I was wondering what the difference is between using Chelated Iron vs. regular Iron supplements for potted plants?


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I have read that iron sulphate (regular iron) isn't very stable at high pH levels.

    Bookmark   January 11, 2011 at 1:31PM
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A Chelate is simply an organic molecule that wraps itself around a metal ion and prevents it's precipitation, increasing it's solubility.
This can be an advantage in hydroponics, but probably not necessary in soil.
Daniel has much more on this at:,
But his site has become tricky to navigate.

    Bookmark   January 12, 2011 at 7:23PM
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mike423(5 IL)

Thanks Ken I'll check it out.

    Bookmark   January 12, 2011 at 9:58PM
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