Most lawns in the Salt Lake Valley are cool-season grasses such as Kentucky bluegrass, often mixed with perennial ryegrass or fescue. They grow most in spring and fall and slow down in summer heat. Use this calendar as a general guide: the right timing shifts from year to year with temperature, rainfall and your local watering guidelines.
Calendar at a Glance
| Season | Typical months | Main lawn tasks |
|---|---|---|
| Early spring | March – April | Clean up winter debris, check sprinklers once freezing nights end, begin mowing as growth starts |
| Late spring | May – June | Core aeration if soil is compacted, fertilize lightly, mow high, water deeply and less often |
| Summer | July – August | Mow high, follow local watering schedules, water early in the morning, watch for heat stress and insects |
| Early fall | September – October | Best window for aeration and overseeding, fall fertilization, leaf cleanup |
| Late fall | October – November | Final mow, winterize sprinklers before hard freezes, last leaf cleanup |
| Winter | December – February | Snow and ice removal, keep heavy traffic and piles off the lawn, water during long dry, mild spells if the ground is not frozen |
Spring (March – June)
- Rake or blow out leaves and debris left from winter so grass can green up evenly.
- Start mowing when the grass begins actively growing; avoid removing more than about a third of the blade at one time.
- Turn on and check sprinklers once the risk of hard freezes has passed, and fix broken heads before summer.
- Spring is one of two good windows for core aeration, once the soil has dried enough to work.
- Fertilize lightly; cool-season lawns benefit most from feeding in fall.
Summer (July – August)
- Raise the mowing height – taller grass shades the soil and copes better with heat.
- Water deeply and less often, early in the morning, and follow any city or water-district watering guidelines.
- Expect some slowdown or browning in extreme heat; avoid heavy fertilizing during hot spells.
- Keep an eye out for irregular brown patches, which can be caused by insects, disease or sprinkler coverage gaps.
Fall (September – November)
- Early fall is generally the best time of year to aerate and overseed cool-season lawns.
- Fall fertilization helps roots store energy for winter and a stronger start next spring.
- Keep leaves from matting on the lawn – heavy leaf cover can smother grass.
- Lower the mower slightly for the last cuts of the season.
- Winterize and blow out irrigation lines before hard freezes to help prevent cracked pipes and heads.
Winter (December – February)
- Plan snow removal for driveways and walkways, and avoid piling heavy snow on the same patch of lawn all winter.
- Use ice melt sparingly near lawns and planting beds; some products can damage turf and plants.
- During long dry, mild spells with no snow cover, a light watering when the ground is not frozen can help lawns and trees.
- Use the downtime to plan spring projects and book services early.
Want Us to Handle the Calendar?
Allstars Property Maintenance offers lawn care, aeration, fertilization, spring and fall cleanup and snow removal in Taylorsville and nearby cities.
Frequently Asked Questions
When should I aerate my lawn in Utah?
Cool-season lawns are usually best aerated in spring or early fall, when the grass is actively growing and the soil is moist but not soggy. Avoid the hottest part of summer.
When should I turn off and blow out my sprinklers?
Before the first hard freezes of the season, which along the Wasatch Front is often in October or early November. The exact timing varies each year.
Do I need to water my lawn in winter?
Usually not, but during long dry, mild spells with no snow cover, a light watering when the ground is not frozen can help prevent winter dry-out.
General guidance only. Timing varies by year, elevation and your lawn’s conditions; follow your city’s watering guidelines. Utah State University Extension publishes detailed local lawn care resources.