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White Powder on Soil After Rain: Likely Limestone, Not Fertilizer

The Observation

Alabama. New fescue/bermuda seeding. White powder on bare soil after rain.

Diagnosis

Not fertilizer burn. Most likely: limestone (lime) applied at seeding. Rain dissolves particles, leaves white residue as water evaporates. Harmless.

Action

Monitor. If grass grows normally, ignore. If decline occurs, send photos. But 99% chance it's just lime residue.

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