Seeding on Clay Slopes: Why It Failed and How to Fix It

Clay Won't Grow Grass from Seed

Water can't penetrate; roots can't push through. Rye germinated fast (3 days) but died—no root penetration. Second seeding same fate.

Fix: Amend, Then Sod

1. Till in 3 inches bark mulch (cedar repels insects).
2. Add corn gluten meal (40 lbs/1,000 sq ft) for nutrients/fungus control.
3. Water, roll to settle.
4. **Lay sod**—anchors soil better than seed on slopes.

Erosion Control

• Steep slopes need retaining: boulders, timbers, or deep-rooted shrubs/trees.
• Sod alone won't hold on steep grades without structural support.

Winter Warning

No time for seed establishment before winter. Sod now or wait for spring prep.