Lawn Care Guide for Marion County
Marion County, Missouri
Data Story
About Lawn Care in Marion County, Missouri
Strong Success in Marion
Marion County matches the state's higher-performing regions with a lawn difficulty score of 70.0. Located in Zone 6a, this county offers a more manageable environment for lawns than the national average of 50.0.
Cooler Summers, Consistent Rain
Annual precipitation of 39.9 inches remains within the ideal range for grass. With only 25 extreme heat days per year, the climate is significantly cooler and less stressful for turf than many southern Missouri counties.
Excellent Foundation for Turf
The soil pH of 6.31 is excellent for most grass types, and the 21.4% clay content provides a stable foundation. While drainage requires attention in specific low areas, standard residential core aeration usually keeps the soil healthy.
Defending Against Drought
Drought has been a persistent issue, with 36 weeks of dry conditions over the past year and 13.5% of the area in severe drought. Residents should employ water-saving techniques like raising mower blades to 4 inches to protect the soil.
Optimal Planting Windows
Target the window between the April 10 last frost and October 27 first frost for all major planting. Kentucky bluegrass and fescue blends perform well here, taking advantage of the 3,741 available growing degree days.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
39.9"
Growing Degree Days
3,741.1
Base 50F
Last Spring Frost
04/10
First Fall Frost
10/27
Days Above 95F
25
Hardiness Zone
6a
Seeding Calendar — Zone 6A
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Begin mowing when grass reaches 3 inches
- Start irrigation if rainfall is below 1 inch/week
- Soil test every 2-3 years — adjust lime or sulfur as needed
Summer
- Mow at recommended height weekly
- Water deeply 1-2 times per week (1 inch total)
- Avoid fertilizing cool-season grasses in peak heat
- Scout for grubs and treat if >10 per sq ft
Fall
- Overseed warm-season lawns if thinning
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Apply pre-emergent for winter weeds
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Keep lawn clear of debris
Watering Deficit Calculator
Monthly Deficit
0.6"
inches of water
Monthly Water
1,787
gallons
Estimated Monthly Cost
$14.30
at $0.008/gallon average
Estimates based on 40" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Marion County
Persistent Drought Conditions
Marion County experienced drought conditions for 36 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
Learn more about regional lawn challenges at The Lawn Report.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Data sourced from USDA SSURGO, NOAA Climate Normals (1991-2020), USDA Plant Hardiness Zone Map, and US Drought Monitor. Lawn difficulty scores and grass recommendations are estimates for informational purposes only.
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