Recovering from Pre-Emergent Herbicide Application: When to Reseed Your Fescue Lawn

Recovering from Pre-Emergent Herbicide Application: When to Reseed Your Fescue Lawn

Charlotte, NC. Applied Scott’s Crabgrass Preventer, saw brown spots, realize you can’t seed. Pre-emergent inhibits new grass seedlings. Here’s the recovery.

Immediate Steps

1. Wait 1 week (rain activates barrier).
2. Mow existing grass low.
3. Overseed fescue.
4. If poor germination, retry in 4–6 weeks.

Better Strategy for Next Year

Overseed in fall. Then apply pre-emergent in spring. No conflict.

What to Expect

• Fescue germinates in ~2 weeks.
• Judge success at 2 weeks post-seeding.
• Brown spots may be fungal (spring moisture) or fertilizer burn—monitor.

Timing is everything. Fall seeding + spring pre-emergent = no conflict, better stand.