Jeff from Lynden writes
How often should this be applied to your grass?
CoRoN 18-3-6 Plus 0.5% Fe can be applied at any time as long as the turf is not dormant. The healthiest, hardiest lawns are fertilized 4 times per year - in the fall, summer, early spring, and late spring, using fertilizers dependent upon what nutrients your lawn needs throughout the year.
Answer last updated on: 04/13/2018