Post-Aeration Cleanup: Leave the Plugs, Fertilize Anyway

Plugs Are Fine Left Alone

Soil cores (plugs) disintegrate in 1–2 weeks on sandy/loam soils. On clay, they may persist longer—avoid traffic when wet to prevent matting/smothering.

Don't Rake—It Damages Grass

Raking wet clay plugs tears grass. Wait. Mow over them once dry (riding mower ok) to break up.

Fertilizing Over Plugs Is Fine

Granular fertilizer falls between plugs to soil. No need to wait. Water in after application.

Pro Tip

If you have heavy clay and high traffic, consider dragging a chain-link fence or mat over dry plugs to break them faster. But usually, patience works best.