Yard Answers › soil amendment
How do I fix heavy clay soil?
Quick answer
Improve clay soil by core aerating annually and top-dressing with ¼ inch of compost. Over a few seasons, organic matter loosens the structure. Avoid adding sand alone — it can make clay set like concrete.
Step by step
- 1Core aerate yearly
- 2Top-dress with compost
- 3Mulch beds with organic matter
- 4Avoid working wet soil
Gear that helps
Home Soil Test KitChecks pH and key nutrients so you only add what your lawn needs.$15–$30 · View on Amazon 
Manual Core AeratorOpens up compacted clay soil so water and roots get deeper.$30–$50 · View on Amazon As an Amazon Associate, My Yard earns from qualifying purchases.
Common questions
Should I add sand to clay?
No — compost is the safer fix.
Rather hire a local pro?
Find trusted soil amendment pros near you — call or text them directly.