Q: I have seen many fertilizers this year without any phosphorus, such as 10-0-10, etc. Is this a problem to use on a lawn?
A: Phosphorus levels are generally in the medium to high range in metro Atlanta soils, so adding more doesn’t do much for plants. If your lawn has the proper pH of 6.0 – 6.5, grass plants can extract all of the phosphorus they need.
In addition, phosphorus is a stream pollutant, so using low phosphorus products avoids the problem of fertilizer granules landing on the street, where they get into stormwater.
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