Can Scott's Turf Builder WinterGuard Fall Weed and Feed be used in the spring?

Yes, Scott's Turf Builder WinterGuard Fall Weed and Feed can be used in the spring. The product is designed to be applied when daytime temperatures do not exceed 85°F (29.44°C) and night-time temperatures do not fall below 50°F (10°C). It also must be used only after the spring lawn has been mowed at least once.