Garden Soil Health, Fertilizing, and Composting Resources

Soil Testing

Sampling lawn and garden soils

Soil Test submission form

Understanding Your Soil Test Results

UW Soil and Forage Lab

Standard Analysis:$15 per sample. Includes soil pH, organic matter %, phosphorus and potassium.

Includes lime and fertilizer recommendations.

Fertilizer Calculator

Soil Amendments

Organic Soil Conditions

Lowering pH

Soil Contaminants in Community Gardens


Garden Fertilization



Build your own composters:

Master Composter Self Study Course

Making and Using Compost in the Garden


Support Extension