Fall Fertilizer plus Broadleaf Weed Control. Excellent, homogenous based formula for a most important time of year for the lawn. Helps it rebound from summer stress, feeds your lawn up to 8 weeks preparing for winter while promoting an early spring green-up, and building strong roots. Contains 13% Potassium, a very important nutrient to help the grass plant overwinter. Kills those perennial broadleaf weeds that will appear in the lawn next spring using the most effective TrimecEster, which can operate at lower temperatures.