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Will mixing Harvest Hero Enhanced Perlite Mix with Coast of Maine Bar Harbor Blend organic potting soil make the soil too “hot”?

The amount of nutrients contained in Coast of Maine Bar Harbor blend releases very slowly. When Harvest Hero Enhanced Perlite Mix is added, there should be no problems with hot levels of phosphorus and potassium. We recommend adding no more than 20% of Harvest Hero and you’ll have a superior product with enhanced soil performance.

Also, because Harvest Hero Enhanced Perlite mix is not 100% organic, when you mix both Harvest Hero Enhanced Perlite Mix with Coast of Maine Bar Harbor blend organic potting soil, it will not retain the organic profile.