Grass Seed Germination Calculator — Estimate Germination Time
Estimate germination time based on soil temperature and seed type.
How We Calculate This
This calculator estimates germination time based on seed type and soil temperature.
Ryegrass: 5-10 days at optimal temperature. Fescue: 10-21 days. Bent grass: 10-28 days.
Times are adjusted based on soil temperature: below minimum threshold, germination slows dramatically; at optimal temps (10-18°C), standard times apply.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates based on standard gardening guidelines. Results may vary with soil conditions, climate, and plant varieties.