Should a starter fertilizer be applied to newly laid, commercially grown sod?

• A. False
• B. True
• C. Not recommended
• D. Only if soil test indicates

Answer: (A)

Fertility strategy for newly laid sod differs from seed establishment. Starter fertilizers are designed to boost root development in germinating seeds or plugs, often with high phosphorus and salts. Newly laid sod already has a rooting system in place, and applying a concentrated starter mix can damage the tender roots and lead to fertilizer burn, so it isn’t recommended. Instead, focus on keeping the sod well-watered to help roots establish, and follow a regular maintenance fertilization plan based on soil test results after establishment. If a soil test shows a phosphorus deficiency, address it with a standard turf fertilizer at a normal rate once roots are established, not with a starter formulation.