Lawn Care Guide for Tama County
Tama County, Iowa
Data Story
About Lawn Care in Tama County, Iowa
Ideal Turf Conditions in Tama County
Tama County earns a high lawn difficulty score of 80.5, placing it well above both state and national averages for ease of maintenance. The 5a hardiness zone is standard for the region, supporting a wide variety of durable cool-season grasses. Homeowners can expect consistent results with standard lawn care practices.
Plenty of Rain and Mild Heat
The county receives a robust 37.1 inches of precipitation annually, which is higher than the state average of 36.1. Only 12 extreme heat days occur per year, the lowest in this group, protecting grass from burning out in the summer. This combination of high moisture and low heat stress is perfect for keeping lawns green longer.
Well-Drained Loam Foundations
Lawns in Tama County benefit from moderately well-drained loam soil and a healthy pH of 6.30. The soil composition of 23.1% clay and 17.7% sand prevents waterlogging while still holding enough moisture for the roots. This balanced structure is generally easy to work with and supports vigorous root development.
Minor Dry Spells Are Manageable
With only 6 weeks of drought in the past year and only 5.0% of the area currently abnormally dry, water stress is low. The county has avoided the more severe drought conditions seen elsewhere in Iowa recently. Standard irrigation during the occasional dry week is usually sufficient to maintain turf health.
April to October Growing Window
The last spring frost on April 30 signals the start of the primary growing season for this 5a zone. With the first fall frost arriving on October 9, you have a solid five-month window for active maintenance and growth. Kentucky Bluegrass is a traditional favorite here that responds well to the ample local rainfall.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Climate Snapshot
Annual Precip
37.1"
Growing Degree Days
2,848.7
Base 50F
Last Spring Frost
04/30
First Fall Frost
10/09
Days Above 95F
12
Hardiness Zone
5a
Seeding Calendar — Zone 5A
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Overseed bare spots once frost risk passes
- 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
- Core aerate compacted areas
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Avoid walking on frozen turf
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Keep lawn clear of debris
Watering Deficit Calculator
Monthly Deficit
0.7"
inches of water
Monthly Water
2,154
gallons
Estimated Monthly Cost
$17.23
at $0.008/gallon average
Estimates based on 37" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
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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