How Much Lime for 5,000 sq ft Lawn with pH 5.5 (Target 6.5)?
Calculate the pounds of lime needed to raise a 5,000 sq ft loam lawn from pH 5.5 to the ideal 6.5.
How to use this tool
- Get a soil test to find your current pH (kits available at garden centres).
- Enter current pH, target pH, and soil type.
- Enter your lawn area in square feet.
- The calculator returns pounds of ground limestone to apply.
A pH of 5.5 is too acidic for most grasses — find out how much lime your 5,000 sq ft loam lawn needs to reach 6.5.
Frequently asked questions
- How much lime do I need to raise soil pH?
- The amount depends on soil type and the desired pH change. Sandy soils need less lime (≈40 lbs per 0.5 pH unit per 1,000 ft²); clay soils need more (≈50 lbs). Always confirm with a soil test.
- How often should I lime my lawn?
- Test your soil every 2–3 years. Most lawns in humid climates need liming every 2–3 years to maintain a pH of 6.0–7.0. Apply lime in fall for spring availability.