Lawn Care Guide for Monroe County
Monroe County, Indiana
USDA SSURGO / PHZMThis week in Monroe County · next up in about 5 weeks (Aug 30)
Get ready to seed cool-season grass — the best fall window is about to open.
Data Story
About Lawn Care in Monroe County, Indiana
Healthy Growing Environment in Monroe
Monroe County outpaces the state average with a lawn score of 74.3, making it a relatively easy place to maintain a lush yard. This 6b hardiness zone offers a climate that is very supportive of cool-season turf.
Abundant Moisture and Mild Heat
The county receives 48.2 inches of annual precipitation, which is well above the state average of 44.2. With 21 extreme heat days, the thermal stress is comparable to state norms, allowing for steady growth throughout the 3623 growing degree days.
Silt Loam with High Retention
The silt loam soil texture with only 13.3% sand results in high moisture retention, which can be both a blessing and a drainage challenge. A soil pH of 5.89 is near ideal, though a small amount of lime can help reach the perfect 6.0+ threshold.
Current Dryness vs. Historical Stability
While the county only saw 4 weeks of drought last year, 100.0% of the area is currently abnormally dry. Maintaining a consistent watering schedule is important now to prevent the silt-heavy soil from cracking and stressing roots.
Optimal Planting Windows
The window between the last spring frost on April 17 and the first fall frost on October 26 provides a stable growing season. Mix Kentucky bluegrass with fescue to take advantage of the well-drained silt loam foundation.
Lawn Difficulty Score
Top Grass Fit for Monroe County
Excellent match
Jonathan Green Black Beauty Ultra
Jonathan Green
Top cultivar score: 100/100
Zone 6b vs Tall Fescue's 3–8 band.
Soil pH 5.88683429263078 vs Tall Fescue's 5.5–6.5 window.
Precipitation 48.150000000000006" + soil AWC vs Tall Fescue's 20–30" need.
Growing-degree-days + frost window vs a intermediate-difficulty establishment.
If you spend any time on lawn care forums, Reddit's r/lawncare, or YouTube lawn channels, one name comes up more than any other: Jonathan Green Black Beauty Ultra. It's practically a cult favorite, and the label, cultivar story, and long-running owner reports explain why. The secret is in the genetics.
In Monroe County, USDA zone 6b, soil pH 5.9, silt loam, Jonathan Green Black Beauty Ultra scores 100/100 — a strong zone match, adequate moisture, and a long enough establishment window.
Recommended Grasses
Tall Fescue
Festuca arundinacea
Choosing grass in Monroe County
Your silty soil and cool-season conditions narrow the field fast. Here's how to think it through for Monroe County — then the specific pick.
- Best cool-season grass seed for fallYour prime seeding window and the top cool-season picks.
- How grass cultivars get scored (NTEP)The independent trial data behind every species ranking.
- Tall Fescue, explainedTraits, care, and where Tall Fescue wins — the species behind your top match.
Top match for Monroe County: Tall Fescue
See the full breakdownPremium Grass Seeds is a sister site in our network. We may earn a commission from qualifying purchases made through its retailer links — this never affects your price. Guidance here reflects your county’s climate and soil data, not hands-on testing.
Climate Snapshot
Annual Precip
48.2"
Growing Degree Days
3,622.6
Base 50F
Last Spring Frost
04/17
First Fall Frost
10/26
Days Above 95F
21
Hardiness Zone
6b
Seeding Calendar — Monroe County
Personalized to this county’s frost dates — a 192-day growing season. Windows below are computed from local last-spring and first-fall frost normals, so they differ county-to-county even within USDA Zone 6B.
Plan your seeding — Monroe County
Pick a grass and a goal to get a personalized schedule anchored to this county’s frost dates.
- 1Prepare the seedbedAug 16 – Aug 29
Mow low, dethatch or rake, and loosen the top ½ inch of soil so seed makes good contact.
- 2Sow seedAug 30 – Sep 27
Best window to sow Tall Fescue in Monroe County, anchored to your local frost dates.
- 3EstablishSep 28 – Oct 25
Protect young seedlings: mow only after they reach ~3 inches and hold off on weed pre-emergents until established.
Silt retains moisture well — keep the seedbed consistently damp with about ¼ inch once daily, easing off if the surface stays wet to avoid damping-off.
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
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 48" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Lawn Care Advisory: Monroe County
Lawn Verdict
Monroe County sits in USDA hardiness zone 6b, a transitional zone where cool-season grasses dominate but some warm-season varieties can survive. with winter lows reaching around -5.0°F. and 3,622.6 growing degree days, sufficient for most common turfgrasses. Moderate rainfall (48.2 inches) generally supports healthy lawns with minimal supplemental watering.
Seasonal Breakdown
Wait until after April 17 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 74.8°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before October 26; this is the best renovation window. Cool winters (January averages 29.6°F) mean slow or dormant growth; keep debris off the lawn.
Watering Guidance
With 48.2 inches of annual rainfall, established lawns typically need watering only during extended dry spells. Currently, 100.0% of the county is in abnormally dry according to the US Drought Monitor. Cool summers reduce water demand; overwatering is a bigger risk than drought stress.
Regional Context
Monroe County is close to the Indiana average temperature, it is somewhat wetter than the state average, USDA zone 6b helps guide grass selection compared to neighboring counties.
Dig deeper into Monroe County
Monroe County is a USDA Zone 6B, silty-soil, cool-season county. Explore the data that shapes its lawn:
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Frequently Asked Questions
What USDA hardiness zone is Monroe County in?
What is the best grass for Monroe County?
How long is the growing season in Monroe County?
How much rainfall does Monroe County get?
What is the soil pH in Monroe County?
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.
Explore more data for Monroe County