What NPK Ratio Do Lawns Need?
Lawns need a nitrogen-heavy NPK ratio like 20-5-10 or 32-0-4 for regular feeding. The ideal ratio is approximately 4-1-2 (nitrogen to phosphorus to potassium). Established lawns rarely need phosphorus unless a soil test shows deficiency. For new lawns, use a starter fertilizer with higher phosphorus like 18-24-6 to promote root establishment.
What You Need to Know
Lawns need a nitrogen-heavy NPK ratio like 20-5-10 or 32-0-4 for regular feeding. The ideal ratio is approximately 4-1-2 (nitrogen to phosphorus to potassium). Established lawns rarely need phosphorus unless a soil test shows deficiency
For new lawns, use a starter fertilizer with higher phosphorus like 18-24-6 to promote root establishment.
For personalized recommendations based on your specific garden size and fertilizer, use our fertilizer calculator.
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