Designed to provide essential mineral nutrients that others don't!
Phase 4- 12-0-15 + sulfur and iron. Winterizer contains iron and sulfur in addition to the Nitrogren and Potassium, to protect and strengthen for quick green-up in the Spring. Each Phase in the Bonide Program also contains the VITAL-X micronutrient package that is designed to provide essential mineral nutrients that others don't. Includes boron, copper, iron, manganese, molybdenum, and zinc. 1 bag treats 5,000 square feet. Not for sale in AK, HI.