The answer to 'how often to lawn fertilization' is that most lawns should be fertilized 2-4 times per year, typically in the spring, summer, and fall. The exact frequency will depend on factors like your lawn type, climate, and growth patterns. Proper fertilization helps maintain a healthy, lush lawn by providing essential nutrients and promoting root growth.
For cool-season grasses like fescue or bluegrass, apply fertilizer in the fall (September-November) and again in the spring (March-May). For warm-season grasses like bermuda or zoysia, fertilize in the late spring (May-June) and mid-summer (July-August). Avoid fertilizing during the hottest, driest months of summer to prevent damage to your lawn.