Connecticut Lawn Weed Control and Fertilization: Separate for Best Results

Weed-and-feed products compromise both fertilization and weed control. Separate them for a healthier lawn.

Fertilization Schedule (Cool-Season Grass)

• Late May, early September, late October (after top growth stops).
• Never in summer heat or early spring.
• Apply to dry lawn, water in.

Weed Control

• Broadleaf weeds: Spot-spray Weed-B-Gon (better than weed-and-feed).
• Crabgrass: Pre-emergent in March/April only (Scott's Halts).
• Weed-and-feed must go on wet lawn, stay 24–48 hrs—bad for fertilizer efficiency.

Lime Decision

• Test soil first (UConn Extension, $10–15).
• Lime only if pH < 6.0. CT soils often acidic—test annually or biennially.
• Never lime blindly.

Brand Choice

Agway, GreenLawn, Scott's—all fine if labeled for lawns. Skip 4-step programs (too much pesticide).