GT 15M Winterizer

Green Thumb, 15,000 SQFT Coverage, 48 LB, 24-0-12, Step 4 Premium Winterizer Lawn Fertilizer, Phosphorus Free, Formulated For Fall Application To Prepare Your Turf For Winter Dormancy, Special Root Building Formula Contains Essential Nutrients That Encourage Stronger & Healthier Seedlings, Contains Slow Release Nitrogen For The Extended Feeding Of Your Turf, Apply In The Fall To Protect Turf During Winter & For A Better Lawn In The Spring, Generally Beginning Of September To Mid November, Northern Zone, Cool Season Grasses, Beginning Of September To End Of November, Transitional Zone, & Mid September To End Of December, Southern Zone, Warm Season Grasses.