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Iron vs Chelated Iron

Posted by mike423 5 IL (My Page) on
Tue, Jan 11, 11 at 11:54

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?


Follow-Up Postings:

RE: Iron vs Chelated Iron

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

RE: Iron vs Chelated Iron

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.

RE: Chelates

Try this;
Good Luck

RE: Iron vs Chelated Iron

Thanks Ken I'll check it out.

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