Planting Grass After Tree Removal: Why Wood Chips Cause Nitrogen Tie-Up and What to Do

45-ft evergreen removed, stump ground, wood chips mixed in soil. Can you seed now? Short answer: no. Grass will fail for years.

The Nitrogen Trap

Decomposing wood (lignin) consumes massive nitrogen via fungi. Mushrooms = active decomposition = nitrogen theft. Grass yellows and dies.

Options

1. Excavate woody soil, compost it, replace with clean topsoil. Best, fastest, most reliable.
2. Keep moist, add organic nitrogen (blood meal, feather meal), wait years. Slow, uncertain, requires monitoring.
3. Plant non-grass groundcover (pachysandra, vinca, wild ginger) that tolerates low nitrogen.

Don't Bury It Deeper

Adding topsoil over chips creates anaerobic conditions, slowing decomposition for decades. Your great-grandkids will still be fighting it.

Wood chips are future soil gold—compost them separately. For lawn, bring in clean soil.