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  • I need to decrease the pH in my growing media

    Created by arianna bozzolo on March 18, 2015 at 2:12 pm

    I bought the Rapitest pH Meter but the only number I can read is 7 (doesn’t matter which type of growing media I test. I have different results with the lab pH meter).

    I need to reduce the pH in a growing media. Any suggestion?

    thank you

    Arianna

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  • March 20, 2015 at 2:26 pm #163981

    Eric Vinje
    Keymaster

    Arianna –

    For soil that is too alkaline, you need to add something that is acidic. Most gardeners use elemental sulfur (1/2 tsp/ 6 in. pot diameter), but you can also add pine needles, coffee grounds or peat moss to the mix — all are very acidic. We offer several trusted, natural options for changing the pH of soil. Let us help you find the best products for your area. Here’s a link.

    https://www.planetnatural.com/product-category/organic-gardening/soil-care/ph-adjustment/

    Hope it helps!

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