How often you cut grass in summer depends on grass type, growing conditions, and how quickly the lawn grows.
Warm-season grasses commonly need mowing every 5–7 days during active summer growth, although faster-growing turf may require more frequent service.
Cool-season grasses often grow more slowly during summer heat, although irrigated lawns can continue active growth.
Maintaining an appropriate mowing height becomes especially important when heat and drought increase stress.
Removing more than one-third of the grass blade at one time can stress turf and increase the risk of scalping.
“`htmlQuick Summary
- Warm-season grasses: Bermuda, Zoysia, and St. Augustine commonly need mowing every 5–7 days during periods of active summer growth, although faster-growing turf may require more frequent service.
- Cool-season grasses: Tall fescue and Kentucky bluegrass may slow during summer heat, so mowing frequency should follow active growth rather than a fixed calendar schedule.
- Mowing height: Maintain the height appropriate for the grass type and raise it slightly during periods of heat or drought stress.
- One-third rule: Never remove more than one-third of the grass blade in a single mowing. If grass becomes too tall, progressive cuts may be needed instead of removing the excess in one visit.
- Written requirements: Specify the target frequency and mowing height for each grass type before the summer growth period begins.
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Summer Mowing at a Glance #
Use this table to set lawn mowing frequency by grass type and growing conditions before setting summer mowing requirements.
Frequency should follow the rate at which the grass grows, while mowing height should stay within the appropriate range for the species and local conditions.
| Grass Type | Summer Height | Typical Summer Frequency | Primary Markets |
| Bermuda | 1–2 inches for common Bermuda | About every 5–7 days during active growth | Phoenix, Las Vegas, Dallas, Tampa, Atlanta |
| Zoysia | 1–2 inches | About every 4–7 days during active growth | Dallas, Atlanta |
| St. Augustine | 2–3 inches | About every 5–7 days during active growth | Tampa, Jacksonville, Orlando |
| Tall Fescue | About 2–3 inches | Varies with heat, irrigation, and active growth | Denver, Seattle, Atlanta (shaded) |
| Kentucky Bluegrass | About 2.5–3.5 inches | Varies with heat, irrigation, and active growth | Denver, Seattle |
These are practical starting ranges rather than fixed schedules. Mowing requirements vary by cultivar, weather, irrigation, fertilization, and growth rate.
UGA Extension lists common Bermuda at 1–2 inches and 5–7 days, St. Augustine at 2–3 inches and 5–7 days, tall fescue at 2–3 inches and 5–7 days, and Zoysia within a broader 3–7-day mowing range.
It also recommends raising mowing height during hot weather and removing no more than one-third of the blade at one time.
Warm-Season Grass Mowing in Summer #
During active summer growth, many warm-season grasses need mowing about once a week, although faster-growing turf may require more frequent cuts.
Mowing often enough to maintain the recommended height also prevents excessive growth that would require removing too much of the blade at once.
Bermuda: Weekly to More Frequent, Depending on Growth #
Bermuda is widely used for warm-season lawns in markets such as Phoenix, Las Vegas, Dallas, Tampa, and Atlanta.
Common Bermuda is generally maintained around 1–2 inches, while some hybrid varieties have different recommended heights and shorter mowing intervals.
UGA Extension lists common Bermuda at a 5–7-day mowing frequency and some hybrid Bermuda varieties at a shorter 3–4-day interval.
Maintain Bermuda within the appropriate mowing range for the variety, and raise the mowing height during periods of heat or drought stress.
A taller summer canopy can shade the soil and help reduce moisture and heat stress. UGA Extension recommends raising mowing height by about half an inch during hot weather.
Avoid allowing Bermuda to become so tall that returning it to the target height would require removing more than one-third of the blade in a single mowing.
If the lawn has become significantly overgrown, progressive cuts can reduce the risk of scalping.
Key Insight
Bermuda can outgrow a weekly mowing schedule during periods of rapid summer growth, particularly when irrigation and other growing conditions support vigorous growth. On high-input properties in hot markets such as Phoenix and Dallas, a 5–6-day interval may be appropriate when the lawn is growing faster than a weekly schedule allows. Properties with faster growth should be scheduled more frequently rather than waiting for the lawn to exceed its recommended height.
Zoysia: Weekly, Height 1-2 Inches #
Zoysia generally grows more slowly than Bermuda, but it may still need mowing every 4–7 days during active summer growth.
UGA Extension lists Zoysia within a 3–7-day mowing range and recommends a 1–2-inch mowing height for common lawn conditions.
During peak heat, raising the mowing height slightly can help reduce stress, particularly when the lawn is also experiencing drought conditions.
Mowing frequency should continue to follow the lawn’s growth rate rather than a fixed calendar interval.
St. Augustine: Weekly During Active Growth, Height 2–3 Inches #
St. Augustine generally performs well at 2–3 inches, with a slightly higher setting appropriate during periods of extreme heat or drought stress.
UGA Extension recommends a 5–7-day mowing frequency during active growth and a 2–3-inch mowing height.
Avoid cutting St. Augustine below the lower end of its recommended mowing range, and never remove more than one-third of the blade in a single mowing.
If a mowing visit is delayed and the lawn becomes too tall, progressive cuts are preferable to removing the excess growth in one pass.
Written mowing requirements should specify the target height and prohibit cutting below the recommended range.
Cool-Season Grass Mowing in Summer #
Cool-season grasses often grow more slowly during summer heat, although irrigated lawns may continue active growth.
Maintaining an appropriate mowing height becomes especially important when heat and drought increase stress.
Tall Fescue: Mow Based on Growth, Height About 2–3 Inches #
Tall fescue can remain green through summer when adequate moisture is available, but prolonged heat and drought can slow growth and increase stress.
Mowing frequency should therefore respond to actual growth rather than a fixed 10–14-day schedule.
UGA Extension lists tall fescue at approximately 2–3 inches and recommends mowing often enough to avoid removing more than one-third of the blade at a time. During hot weather, increasing mowing height can help reduce turf stress.
Maintain tall fescue around its recommended height and avoid removing more than one-third of the blade in a single mowing.
During periods of significant heat or drought stress, maintaining a slightly higher canopy can help protect the turf.
Avoid routine nitrogen fertilization of established tall fescue during summer heat unless a local turf-management program specifically recommends it.
Excessive nitrogen during hot, humid conditions can increase disease and heat-stress risk, while fall is generally an important management period for cool-season turf.
Kentucky Bluegrass: Mow Based on Growth and Summer Stress #
Kentucky bluegrass is particularly susceptible to summer heat and drought stress and may enter dormancy when conditions remain hot and dry.
Its response depends on temperature, soil moisture, irrigation, and local growing conditions rather than a single temperature threshold.
Maintain Kentucky bluegrass at an appropriate summer height and mow whenever enough growth occurs to require a cut, while avoiding removal of more than one-third of the blade at one time.
Suggested mowing heights vary by region and turf type; for example, Penn State lists 2.5–3.5 inches for Kentucky bluegrass in Pennsylvania lawns.
Avoid unnecessary mowing while Kentucky bluegrass is fully dormant, particularly when little or no active growth is present. Dormant bluegrass can remain alive through summer and resume growth when favorable conditions return.
Important
Brown dormant grass is not necessarily dead grass. Cool-season lawns can enter summer dormancy under heat and drought stress and recover when growing conditions improve. Explain summer dormancy to residents before periods of extreme heat so brown turf is not automatically mistaken for dead grass.
Why Mowing Height Matters More in Summer Than Spring #
Maintaining a taller summer canopy can help shade the soil, reduce moisture loss, and limit heat stress around the root zone.
Raising mowing height during periods of heat or drought is a standard turf-management practice recommended by Extension guidance.
Taller grass shades the soil surface, which can help reduce moisture loss and protect the turf during periods of summer heat.
The one-third rule connects mowing height with frequency. If the lawn is 1.5 inches tall, removing more than 0.5 inches in a single mowing would exceed the one-third rule.
When a delayed visit leaves grass too tall to return to the target height safely, progressive cuts can reduce stress and scalping risk.
A delayed mowing visit becomes more consequential when fast-growing turf continues to gain height.
Maintaining an appropriate schedule reduces the chance that the next visit will require an excessive cut.
Key Takeaway
On Raise mowing height slightly during periods of summer heat or drought stress, and adjust mowing frequency when grass grows faster than the normal schedule allows. The goal is to maintain the appropriate height without removing more than one-third of the blade at a time. .
Common Summer Mowing Mistakes at Rental Properties #
Rental properties commonly run into these summer mowing mistakes.
- Keeping spring heights through summer. Maintaining a very low mowing height during periods of heat and drought can increase turf stress. Raise the mowing height when conditions warrant it rather than waiting for visible damage.
- Mowing on a fixed calendar schedule rather than following growth. A weekly schedule can work for many warm-season lawns during active growth, but faster-growing turf may require more frequent mowing, while heat-stressed cool-season turf may grow more slowly. Frequency should track growth rate and local conditions.
- Mowing during extreme heat. Avoid mowing during the hottest part of the day when turf is already under significant heat or drought stress. Schedule service outside peak heat while avoiding periods when the turf is excessively wet.
- Cutting dormant cool-season grass unnecessarily. Wait for dormant grass to resume active growth before returning to a regular mowing schedule. Unnecessary mowing provides little benefit when there is no active growth.
How to Direct Your Provider on Summer Mowing Schedules #
Existing mowing schedules can continue into summer unless the required frequency and height are updated before the summer growth period begins.
Written requirements make it easier to maintain consistent mowing standards across multiple properties.
When setting summer mowing requirements, specify the following.
- Frequency based on growth. Use a target interval such as “every 6–7 days during active growth” when appropriate, while allowing adjustments when weather and growth conditions change.
- Height by grass type. State the target height explicitly in writing, such as “Bermuda at 1–2 inches” or “St. Augustine at 2–3 inches,” and adjust the target upward when heat or drought stress warrants it.
- The one-third rule as a constraint. If a visit is delayed and the grass is too tall for a single cut, require progressive cuts and a follow-up visit rather than removing excessive growth in one pass.
- Rain-delay protocol. In markets where summer storms regularly disrupt mowing schedules, establish a rescheduling window before the season begins.
Summer Vendor Briefing Checklist
- ✓ Frequency in calendar days (“every 6-7 days”), not just “weekly”
- ✓ Height by grass type stated explicitly in writing
- ✓ One-third rule as a constraint: progressive cuts required if a visit is delayed
- ✓ Rain-delay rescheduling window agreed before the season starts
- ✓ Written confirmation and completion photos required for every visit
Our guide on recurring landscaping schedules covers how to structure this across a portfolio.
Property managers overseeing multiple addresses can use written mowing requirements and completion documentation to maintain consistent service across properties.
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Frequently Asked Questions #
How often should I mow Bermuda grass in summer? #
Bermudagrass needs mowing every 6-7 days in summer and every 5-6 days on high-input properties during peak growth in June and July. Keep height at 1.5-2 inches. Weekly mowing is the minimum required to stay within HOA height limits and avoid scalping from accumulated growth between visits.
What height should I cut my lawn in summer? #
Warm-season grasses should be raised above spring heights: Bermuda to 1.5-2 inches, Zoysia to 1-2 inches, St. Augustine to 3-3.5 inches. Cool-season grasses need the most adjustment: tall fescue to 3.5-4 inches, Kentucky bluegrass to 3-3.5 inches. Never cut any grass below two-thirds of its current height in a single visit.
How short can I cut my lawn in summer without damaging it? #
Never remove more than a third of the blade height in a single cut, and never drop below the minimum for the grass type on that lawn regardless of how overgrown it’s gotten.
Bermuda shouldn’t go below 1.5 inches in summer, St. Augustine not below 2.5 inches, and cool-season grasses like tall fescue and Kentucky bluegrass not below 3 inches.
Cutting an overgrown Bermuda lawn back to spec in one pass removes more than half the blade, which exposes the crown and causes scalping that takes 3-6 weeks to recover from in summer heat.
If a lawn has grown past the point where it can be corrected in one cut without breaking the one-third rule, schedule two visits instead of one, and flag it to the vendor before the visit, not after the scalp shows up in the completion photos.
Can I mow less often in summer to save money? #
For warm-season grasses, no. Reducing the weekly frequency leads to growth accumulation that requires scalping cuts to correct. Recovery costs exceed the savings. For cool-season grasses in Denver and Seattle, every 10-14 days is already the correct summer frequency.
What happens if a mowing is skipped in summer? #
For warm-season grasses in HOA markets, a skipped visit can trigger an HOA height citation within the 10-day notice cycle. For Bermuda, a 12-14-day gap during peak growth often results in a lawn that is too tall to correct in a single cut without scalping. Schedule make-up visits within 24-48 hours of any missed appointment.
How often should you cut grass in summer? #
Cut grass on a schedule set by grass type, not a fixed number of days for every lawn. Warm-season grasses like Bermuda, Zoysia, and St. Augustine need cutting every 6-7 days from May through September.
While, Cool-season grasses such as tall fescue, and Kentucky bluegrass need cutting every 10-14 days once summer heat slows their growth. Mowing on the same schedule year-round, regardless of grass type, is the most common cause of scalped or heat-stressed lawns we see across our portfolio.
How often should you mow your lawn in the summer? #
For most properties in our 12 markets, you should mow weekly for warm-season grass and biweekly mowing for cool-season grass. The exception is high-input Bermuda properties in Phoenix and Dallas during June and July, where growth can outpace a weekly schedule and require service every 5-6 days. Confirm your grass type before locking in a summer schedule, since the wrong frequency for your grass type causes more damage than a missed visit.
What time of day should you mow in summer? #
Mow early in the morning or late in the afternoon, not between 10 am and 4 pm. Mowing during peak heat in Phoenix or Dallas in July adds heat stress to grass that’s already been freshly cut, on top of whatever stress the day’s temperature is putting on the root zone. The frequency and height rules above assume the cut itself isn’t compounding heat stress—timing the visit right is part of getting the schedule to work.
How do you mow dormant grass in summer? #
Don’t mow dormant grass on a normal schedule. Dormant cool-season lawns in Denver and Seattle turn brown but stay alive through summer heat, and cutting a fully dormant lawn adds stress and can damage the crown. Wait for active growth to resume before mowing again.
What is the one-third rule in mowing? #
The one-third rule means never removing more than a third of the grass blade height in a single cut. Cutting further than that in one pass exposes the crown and causes scalping, which takes 3-6 weeks to recover from in summer heat.
Is it okay to cut grass every 2 weeks in summer? #
For cool-season grasses like tall fescue and Kentucky bluegrass, every 10-14 days is correct in summer heat. For warm-season grasses like Bermuda, a 2-week gap is too long and usually forces a scalping cut to catch up on growth that should have been cut weekly.
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