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Hyacinth Plant

Q.acidity of soil

Zone dartford | palitha added on October 25, 2016 | Answered

How often to use iron sulfate to increase acidity of soil (pH)?

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Certified GKH Gardening Expert
Answered on October 25, 2016

Iron sulfate can be applied every 4-6 weeks, until you've reached the recommended amount to add to your soil, or the recommended pH.

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