fall lawn fertilizing temperatures - Knowledgebase Question

detroit, Mi
Question by keithdk8
November 4, 2009
what are the ideal temps to apply fall lawn fertilizers.

Answer from NGA
November 4, 2009


The ideal temperature for fall application is 50F. According to the fertilizer manufacturers, "Fall fertilizer applications should be made when the average daily temperature drops to 50?? F. The average daily temperature is determined by adding the daily high temperature and the daily low temperature, and dividing by two. For example, 61?? F (daily high) +37?? F (daily low) divided by 2 = 49?? F average daily temperature." I, personally, have never followed such exacting requirements. The first week of November is generally a good time to apply winterizer fertilizer in Detroit.

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