The best time to weed and feed your lawn is generally during two main seasons: spring and fall. In spring, apply weed and feed when daytime temperatures are consistently between 60°F and 90°F, and the grass is actively growing—typically mid-April to early June for cool-season grasses in the northern regions, and from March to early June for warm-season grasses in the southern regions. In fall, the ideal window is from late August to mid-October for cool-season grasses, when temperatures drop below 80°F and the lawn is recovering from summer stress. Apply early in the morning or early evening on a mild, windless day with no rain forecast for 24-72 hours. Avoid applying weed and feed more than twice per year, with at least 30-60 days between applications. Also, for new lawns, wait until the grass has been mowed at least twice before application. These timing guidelines help maximize the effectiveness of both the fertilizer and herbicide components while protecting lawn health.
Additional tips include:
- Avoid applying weed and feed too early when weeds are not actively growing or too late when grasses are going dormant.
- Apply to damp grass, either after rain or watering, allowing the product to stick and absorb better.
- Do not apply in the heat of midday sun to prevent grass burn.
- Fall application helps control winter annual weeds and supports lawn recovery before winter.
This schedule provides nutrient boost and weed control most effectively for a healthier lawn.
