Fixing Weed‑and‑Feed Timing for Dandelion and Chickweed Control

Why April Weed‑and‑Feed Missed the Mark

Scotts weed‑and‑feed applied in April on a cool‑season lawn typically fails because broadleaf weeds like dandelions are not yet actively translocating energy to roots. The herbicide component (usually 2,4‑D, MCPP, dicamba) works best when weeds are in full growth—late May or, ideally, early September.

Effective Spring and Fall Strategy

1. Spot‑treat now: Use Ortho Weed‑B‑Gon (or a similar three‑way broadleaf herbicide) on actively growing dandelions. Spray until leaves are wet, not dripping. Avoid temperatures above 80°F or drought‑stressed turf.
2. Fall weed‑and‑feed: Apply a quality weed‑and‑feed in early September. Cool temperatures and active root growth maximize herbicide uptake and fertilizer benefit.
3. Pre‑emergent for chickweed: Chickweed (likely the purple‑flowered vine) is a winter annual. Apply Scotts Turf Builder with Halts (pendimethalin) in early April next year to prevent germination.

Key Reminders

• Read labels: some weed‑and‑feed products don’t control dandelions.
• Mow 2–3 days before and after herbicide application.
• Water lightly before spraying to help granules stick (for weed‑and‑feed) or ensure foliage is dry for liquid sprays.