Reviving Fescue on Compacted Clay in Central NC: Till, Don't Aerate

Situation

3-year-old subdivision on former farmland. Gray clay, builder-seeded fescue. French drains added rocks. Clay hard as concrete; grass dead despite 2×/week watering. Soil test: high acidity. Lime applied 2×. Fall aerate/fertilize → poor spring establishment → summer dormancy. Scotts employee recommended gypsum.

Why Gypsum Is Wrong Here

Gypsum disperses clay, slows drainage on heavy soils. Not recommended.

Correct Plan: Till Deep + Organic Matter

1. Till (don't aerate) if grass is mostly dead. Loosen 6–8 inches deep.
2. Spread ½ inch coarse sand + 1 inch organic matter (leaves, grass clippings, compost) over entire area. Till in.
3. If aerating: Dust sand + OM, then aerate heavily.
4. Target pH 6.5 (re-test after lime).
5. Seed fescue Sept–Oct. Starter fertilizer at 1-inch height.
6. Fertilize 2×/year: Sept & March only. Never summer.
7. Mow 2.5–3 inches. Water 2 inches/week deep, infrequent.

Grass Alternative for Sunny NC Clay

Bermuda or Zoysia (Palisades) outperform fescue in summer heat. Even with best care, expect annual fescue overseeding.