Tall Fescue Soil pH Guide
Ideal pH range: 6.0-7.0. Fescue tolerates a wider pH range than most cool-season grasses, but nutrient availability drops sharply outside this window. Low pH (below 6.0): apply pelletized lime at soil test recommendations — typically 25-50 lbs per 1,000 sq ft. High pH (above 7.0): apply pelletized sulfur at 5 lbs per 1,000 sq ft, only when air temps are below 75°F. Retest in 3 months. Soil test annually in late summer or early fall — this gives you time to amend before the critical fall growing season.
Frequently Asked Questions
What pH does fescue need?
Fescue performs well across pH 6.0-7.0, which is wider than most grasses. This makes it less sensitive to soil chemistry and easier to manage without constant amendments.
Should I still test my soil for fescue?
Yes. Annual soil testing reveals nutrient levels and pH trends. Even though fescue is pH-flexible, knowing your phosphorus and potassium levels helps you fertilize efficiently.
How do I adjust pH for fescue?
If below 6.0, apply pelletized lime. If above 7.0, apply pelletized sulfur at 5 lbs per 1,000 sq ft when temps are below 75°F. Retest in 3 months. Major corrections take time.
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