St. Louis, Missouri
Lawn Care in St. Louis, Missouri
Find a local lawn care pro, learn when to mow and fertilize for the cool-season northern climate, or sign up for Lawnager software if you run a lawn care business.
St. Louis Lawn Care Calendar
Climate-specific timing for St. Louis, MO (Cool-Season Northernzone). Use this as a baseline — adjust by 1-2 weeks based on the current season's weather.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mow season
Pre-emergent
Fertilize
Aeration
Overseeding
Dormancy
Mow season
Pre-emergent crabgrass
Fertilization application
Aeration
Overseeding
Dormancy
Predominant grass types
Kentucky bluegrass, Tall fescue, Perennial ryegrass, Fine fescue
Mow season
Mid-April through late October
Pre-emergent crabgrass
Mid-March to mid-April — apply when soil temperatures reach 55°F or forsythia bushes start blooming
Aeration window
Early to mid-September — the optimal window when soil temperatures cool and roots resume active growth
Overseeding
Mid-September, immediately after aeration — perennial ryegrass germinates fastest, Kentucky bluegrass takes longer
Dormancy
November through March — turf goes brown and dormant under snow cover, resuming growth as soil temperatures climb above 50°F
Fertilization schedule
- 1.Early April: spring greenup feed, often combined with pre-emergent crabgrass control
- 2.Early June: slow-release nitrogen for steady summer growth
- 3.Early September: recovery feed plus root development before winter
- 4.Late October: winterizer with higher potassium for cold tolerance
Cool-season grasses thrive in spring and fall. Summer heat stress above 85°F requires raising mowing height to 3-4 inches and watering deeply but infrequently. Avoid fertilizing during heat waves.
Lawn Care Considerations in St. Louis
Northern lawns face white grubs in mid-summer (a mid-July preventative is standard) and snow mold in late winter where snow piles linger. Brown patch fungus appears during humid July-August heat spells. Many states including Minnesota, Wisconsin, and Michigan restrict phosphorus in non-establishment fertilizer to protect waterways. Kentucky bluegrass and tall fescue dominate the region because they tolerate cold winters and recover well in the cool spring and fall growing windows.
Mow frequency
Once a week from mid-April through October when grass is actively growing. Slow to bi-weekly during mid-summer heat stress and early spring/late fall.
Mow height
Tall fescue and Kentucky bluegrass: 3 to 4 inches. Raise to the high end (4 inches) during summer heat to shade roots. Lower (2.5 inches) for the final fall cut.
Water needs
1 to 1.5 inches per week during active growth, including rainfall. Deep, infrequent watering (2-3 times per week) beats daily shallow watering. Reduce during winter dormancy.
Irrigation
Irrigation is helpful but not required — natural rainfall typically covers most of the season. Established lawns survive 2-3 weeks of summer drought by going semi-dormant.
Lawn Care FAQs for St. Louis
Common questions homeowners ask about lawn care in St. Louis.
When does mowing season start in St. Louis, MO?
Mid-April through late October
How often should I mow my lawn in St. Louis?
Once a week from mid-April through October when grass is actively growing. Slow to bi-weekly during mid-summer heat stress and early spring/late fall.
What is the best mowing height for a lawn in St. Louis?
Tall fescue and Kentucky bluegrass: 3 to 4 inches. Raise to the high end (4 inches) during summer heat to shade roots. Lower (2.5 inches) for the final fall cut.
When should I apply pre-emergent crabgrass control in St. Louis?
Mid-March to mid-April — apply when soil temperatures reach 55°F or forsythia bushes start blooming
When is the best time to aerate a lawn in St. Louis?
Early to mid-September — the optimal window when soil temperatures cool and roots resume active growth
When should I overseed my lawn in St. Louis?
Mid-September, immediately after aeration — perennial ryegrass germinates fastest, Kentucky bluegrass takes longer
How much water does a lawn in St. Louis need?
1 to 1.5 inches per week during active growth, including rainfall. Deep, infrequent watering (2-3 times per week) beats daily shallow watering. Reduce during winter dormancy.
Do I need a sprinkler system for a lawn in St. Louis?
Irrigation is helpful but not required — natural rainfall typically covers most of the season. Established lawns survive 2-3 weeks of summer drought by going semi-dormant.
What grass types are common in St. Louis, Missouri?
Kentucky bluegrass, Tall fescue, Perennial ryegrass, Fine fescue. Cool-season grasses thrive in spring and fall. Summer heat stress above 85°F requires raising mowing height to 3-4 inches and watering deeply but infrequently. Avoid fertilizing during heat waves.
What pests, diseases, and local regulations affect lawns in St. Louis?
Northern lawns face white grubs in mid-summer (a mid-July preventative is standard) and snow mold in late winter where snow piles linger. Brown patch fungus appears during humid July-August heat spells. Many states including Minnesota, Wisconsin, and Michigan restrict phosphorus in non-establishment fertilizer to protect waterways. Kentucky bluegrass and tall fescue dominate the region because they tolerate cold winters and recover well in the cool spring and fall growing windows.
Find a Lawn Care Pro in St. Louis
35 businesses listedFree public directory of lawn care businesses in St. Louis. Listings are sourced from public business data — being listed here does not mean a business uses Lawnager software. Verified business owners can claim their listing to edit contact info and services.
Lawn Love - St. Louis
5.0 (91)
4000 Lynton Dr, St. Louis, MO 63129, USA
Excel Landscaping
5.0 (71)
1020 Hudson Ave, Webster Groves, MO 63119, USA
CTC Landscaping LLC
5.0 (59)
315 Jana Dr, Florissant, MO 63031, USA
Metteer Lawn Landscape LLC
5.0 (41)
812 Rinzetta Dr, St. Louis, MO 63129, USA
Fleming's Lawn Service
5.0 (25)
4718 Farlin Ave, St. Louis, MO 63115, USA
A Sqrd Lawn Care Services LLC
5.0 (5)
4818 Washington Ave, St. Louis, MO 63108, USA
Cut & Trim Lawn Care Services, LLC
5.0 (4)
1216 S 13th St, St. Louis, MO 63104, USA
The Standard Lawn and Landscaping
5.0 (2)
2715 Telegraph Rd, St. Louis, MO 63125, USA
A Sqrd Lawn Care Services LLC
5.0 (1)
4818 Washington Ave, St. Louis, MO 63108, USA
Best Lawn Care
4.9 (961)
209 Josephville Rd, Wentzville, MO 63385, USA
Spring Green
4.9 (369)
12430 Tesson Ferry Rd, St. Louis, MO 63128, USA
Timberline Landscapes
4.9 (129)
2827 Breckenridge Industrial Ct, St. Louis, MO 63144, USA
Top Notch Lawn Maintenance LLC
4.9 (91)
1397 Gerard Park Ln, Hazelwood, MO 63042, USA
Sundown Landscape Contracting
4.9 (90)
1087 Gravois Rd, Fenton, MO 63026, USA
The Outdoor Pros
4.9 (76)
7750 Maryland Ave #50003, St. Louis, MO 63105, USA
Lawns Unlimited LLC
4.9 (49)
140 W Etta Ave, St. Louis, MO 63125, USA
Loyalty Lawn Care
4.8 (717)
2070 Exchange Dr, St Charles, MO 63303, USA
Kozeny's Lawn Service LLC
4.8 (178)
2717 Sedan Dr, St. Louis, MO 63125, USA
Lawn Doctor of Fenton-Wildwood-Oakville-Imperial
4.8 (162)
808 Marshall Rd, Valley Park, MO 63088, USA
Tennant Landscape Solutions Inc
4.8 (111)
11724 Administration Dr, St. Louis, MO 63146, USA
2 Bros That Mow- Lawn & Landscape
4.8 (101)
6355 Manchester Ave, St. Louis, MO 63139, USA
Frisella Landscape Group
4.8 (78)
2214 S Big Bend Blvd, Richmond Heights, MO 63117, USA
Outdoor Creative Design
4.8 (66)
2579 Rock Hill Industrial Ct, St. Louis, MO 63144, USA
Pro Turf & Pro Pest Solutions - St. Louis Lawn Care
4.7 (609)
2263 Administration Dr, St. Louis, MO 63146, USA
Ryan Lawn & Tree
4.7 (170)
582 Goddard Ave, Chesterfield, MO 63005, USA
Recovery Landscape An lawn Care LLC
4.7 (3)
702 N Market St suite 110 1943, St. Louis, MO 63101, USA
Quiet Village Landscaping
4.6 (271)
9810 Page Ave, St. Louis, MO 63132, USA
Lawn Masters
4.6 (212)
709 Glover Ave, Valley Park, MO 63088, USA
Shelton Landscape & Maintenance
4.6 (88)
1515 Lonedell Industrial Ct, Arnold, MO 63010, USA
Poynter Landscape Architecture & Construction
4.6 (64)
15815 Jedberg Ln, Ballwin, MO 63021, USA
Weed Man Lawn Care
4.3 (383)
13852 Ferguson Ln, Bridgeton, MO 63044, USA
Kyle's Landscape Service
4.3 (105)
5320 Lemay Ferry Rd, St. Louis, MO 63129, USA
Landscape St. Louis
4.3 (21)
2601 McCausland Ave, St. Louis, MO 63143, USA
Allen Outdoor Solutions
4.1 (158)
7219 Weil Ave, St. Louis, MO 63119, USA
LawnStarter Lawn Care Service
3.8 (451)
6105 Delmar Blvd #1418, St. Louis, MO 63112, USA
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