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Here is the direct answer: in North Texas, most lawns should be mowed weekly during the growing season, roughly late spring through summer, and can often move to every other week in the cooler shoulder months when growth slows. The reason is not the calendar, it is how fast your grass is actually growing. Mow on a schedule that keeps you from ever removing too much leaf at once, and your lawn stays healthy. Let it grow too long between cuts and you invite scalping, stress, and weeds. This guide explains how to choose, and when biweekly is fine versus when it will hurt your lawn.
Texas A&M AgriLife Extension recommends the one-third rule: never remove more than one-third of the grass blade in a single mowing. Cutting more than that stresses the plant, forces it to burn energy regrowing leaf instead of roots, and leads to a shallow root system that handles heat, drought, and disease poorly.
The one-third rule is what makes frequency a growth question, not a calendar question. If your grass grows fast, as it does in a North Texas summer, weekly mowing is often the only way to cut it without violating the rule. If growth slows in fall, biweekly can keep you within the rule just fine. Match the mowing interval to the growth rate and you will usually land on the right answer.
Our common lawns, Bermuda and St. Augustine, are warm-season grasses. They grow slowly in early spring, explode through the summer heat, then taper off in fall before going dormant in winter. During peak summer growth, a healthy, fertilized, watered lawn can easily put on enough height in a week that a biweekly cut would remove far more than one-third of the blade. That is why weekly service is the summer standard across DFW.
Bermuda is an aggressive grower maintained at a lower height, typically 1 to 2 inches for a home lawn with a rotary mower, per Texas A&M AgriLife Extension. Because it is cut short and grows fast, Bermuda hits the one-third threshold quickly. In peak season, Bermuda often needs weekly mowing, and sometimes more, to stay in bounds. Biweekly Bermuda in summer almost always means scalping.
St. Augustine is maintained taller, generally 2 to 4 inches, per Texas A&M AgriLife Extension. The taller height gives you a little more cushion between cuts, but St. Augustine is still a vigorous summer grower, so weekly mowing is usually best in peak season, with twice-a-week possible during heavy rain-and-fertilizer growth. Its taller mowing height means it can sometimes tolerate biweekly better than Bermuda in the shoulder seasons.
Beyond grass type and season, several factors speed or slow growth and shift your ideal interval:
Biweekly can be fine when: growth is genuinely slow, in early spring before things take off, in the cooler parts of fall, during drought when the lawn is barely growing, or on a shadier, slower St. Augustine lawn maintained at the taller end of its range.
Biweekly backfires when: it is peak summer, the lawn is fertilized and watered, or you have short-cut Bermuda. In those conditions, two weeks of growth means your next cut removes far more than one-third of the blade. That produces scalping (brown, stubbly patches where you exposed stems), a stressed lawn, more clippings to deal with, and an opening for weeds. The catch-up cut is also harder, and some providers charge more for an overgrown lawn.
Biweekly looks cheaper because there are fewer visits, but the math is not that simple. Weekly service usually carries a lower per-visit rate, since shorter grass is faster to cut. Biweekly often costs more per visit and, in summer, can trigger long-grass or catch-up surcharges when the lawn overgrows. Your true monthly cost depends on how many visits you get and whether skipping weeks leads to problems you pay to fix later. For a full breakdown of what drives price, see our local guides on lawn mowing cost in Frisco, Prosper, and Dallas.
| Situation | Best Frequency | Why |
|---|---|---|
| Peak summer (June to August), any grass | Weekly | Fast growth; biweekly would break the one-third rule and cause scalping. |
| Bermuda lawn, growing season | Weekly (sometimes more) | Cut short and grows fast, so it hits the one-third limit quickly. |
| St. Augustine, peak season | Weekly | Vigorous summer growth; taller height helps but weekly keeps it clean. |
| Early spring or cool fall | Weekly or biweekly | Slower growth can allow a longer interval within the one-third rule. |
| Shady, slower lawn at taller height | Biweekly may work | Less growth between cuts; monitor and adjust. |
| Drought, minimal growth | Biweekly or as needed | Little growth to remove; do not stress dormant or struggling turf. |
Weather and turf growth can change the right schedule at any time. Use this as a starting point and adjust to what the lawn is actually doing.
HomePilot offers both weekly and every-other-week recurring mowing, with the same crew each visit so your lawn is cut at the right height and kept on a consistent rhythm. If you are not sure which fits your grass, your shade, and your standards, the team can help you choose and adjust as the season changes. Get a free quote and we will recommend the right cadence for your yard.
During the growing season, weekly is better for most lawns, because summer growth is fast enough that biweekly would remove more than one-third of the blade at once. In slower months, biweekly can be fine.
It can, in peak season. Letting the grass overgrow and then cutting it back hard causes scalping and stress. In slow-growth periods, biweekly is usually safe.
If each mow removes a big share of the height, leaves stubbly brown patches, or produces heavy clumps of clippings, you are waiting too long between cuts. Shorten the interval.
Yes. Short-cut Bermuda hits the one-third limit fast and usually needs weekly mowing in season. Taller St. Augustine has a bit more cushion but is still best mowed weekly in peak growth.
In North Texas, let grass growth decide, not the calendar. That means weekly mowing for most lawns through the summer, with biweekly reasonable only when growth genuinely slows. Follow the one-third rule, match your interval to your grass type and the season, and you will keep a healthier, better-looking lawn, and often spend less overall. Want the right schedule handled for you? Get your free HomePilot quote today.
Texas A&M AgriLife Extension, Bermudagrass and St. Augustinegrass mowing height and warm-season turfgrass mowing recommendations, including the one-third rule, agrilifeextension.tamu.edu, reviewed July 19, 2026. HomePilot service information, homepilotco.com.
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