Maybe you’ve seen 15-15-15 fertilizer while out shopping for your lawn care supplies. These three numbers refer to its NPK ratio (its ratio of nitrogen, phosphorus, and potassium). 15-15-15 fertilizer is balanced in its content, which seems good … but should you use it? Is 15-15-15 fertilizer good for lawns, or are you better off with a different type of fertilizer for your grass?
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