Greenskeeper’s Secret Winterizer 28-5-10 (40 lb)

Greenskeeper’s Secret Winterizer 28-5-10 is a high-nitrogen fall fertilizer that strengthens your lawn before winter, promoting vigorous root growth and improved resilience. Designed for application in September through December, this blend supports a greener lawn come spring. One 40 lb bag covers up to 11,800 sq. ft., making it ideal for larger lawn areas.

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