How often should you mow? A season-by-season guide
Mowing frequency isn't a fixed schedule — it flexes with grass type, rainfall, and the calendar. Here's how ProMows crews decide.
Every lawn has a rhythm, and mowing too often (or too rarely) throws it off. The one-third rule still holds: never cut more than a third of the blade in a single pass. From there, frequency is a function of grass type, rainfall, and time of year.
In peak growth — May through July for cool-season lawns, June through September for warm-season — weekly mowing is standard. Skip a week and you'll scalp the lawn trying to catch up, which stresses the roots and invites weeds.
Shoulder seasons (April, October) usually flex to every 10 days. Once growth slows in late fall, a final short cut before dormancy prevents matting under leaves and snow.
The fastest way to know: watch the blade length, not the calendar. If the tips are above your target height by more than a third, it's time to mow.