Smart Lawn Fertilizing: Timing, Products, and Environmental Responsibility

Why Lawns Need Fertilizer

Unfed lawns grow sparsely, inviting weeds, pests, and diseases. However, year-round overfeeding harms more than helps. Excess nitrogen from home lawns is a major threat to water supplies, causing algal overgrowth that disrupts aquatic ecosystems. It also increases thatch, weakens roots, and raises water needs.

Optimal Fertilizing Schedule

• Cool-season grasses: Fertilize in fall (nourishes roots for spring boost); optionally again in late spring/early summer.
• Warm-season grasses: Fertilize in summer at peak growth—once in June, again in August.

Product Selection and Application

Use lawn-specific controlled-release formulas. Herbicide-fertilizer combos work if your weed matches the product's targets (check label). Apply with a spreader for even distribution—uneven application causes fertilizer burn and patchy color.