Nutrient levels and pH in soil are also something you should try to know about your soil. The local Agricultural Extension service with offer information on soil testing to determine basic nutrients. There are also some over the counter tests available from high-end garden supply stores.
pH is the condition of acidity or alkalinity in units. Some plants thrive only when the pH is optimum for the plant. A 7 pH is neutral, higher numbers are more alkaline lower are more acidic. To neutralize acid one can add agricultural lime. The optimal pH for most herbs is 5.5 to 6.8 pH.
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clay, gardening, herbs, loam, ph, sand, silt, soil
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