Tall Fescue Mowing Guide
Mow at 3.0-3.5 inches during the growing season. In summer heat stress (above 85°F), raise the deck to 3.5-4.0 inches — taller blades shade the soil and reduce water loss. Never remove more than one-third of the blade in a single cut. Sharp blades are critical — dull blades tear fescue's coarse leaf tissue, creating brown tips and disease entry points. Mow frequently enough to maintain height without scalping. Return clippings to the lawn — fescue's low thatch production means clippings decompose quickly and recycle nitrogen.
Frequently Asked Questions
What height should I mow fescue?
Maintain 3.0-3.5 inches during spring and fall. Raise to 3.5-4.0 inches in summer to shade roots during heat stress. Never cut below 2.5 inches.
How often should I mow fescue?
Weekly during spring and fall when growth is active. You may be able to stretch to every 10-14 days in summer when growth slows. Follow the one-third rule — never remove more than one-third of the blade.
Should I bag or mulch fescue clippings?
Mulch. Fescue clippings break down quickly and return nitrogen to the soil. Only bag if you're mowing through heavy weed seed heads or if clippings are clumping on the surface.
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