LawnByCounty

Lawn Care Guide for Bristol County

Bristol County, Massachusetts

USDA SSURGO / PHZM

Data Story

About Lawn Care in Bristol County, Massachusetts

Bristol Leads the State in Lawn Ease

With a high lawn difficulty score of 69.3, Bristol County is the easiest place in our list to maintain a beautiful lawn. This score is significantly higher than both the state average of 56.8 and the national median of 50.0. The Zone 7a climate provides a long, productive window for turf management.

Abundant Water and Ample Warmth

Bristol receives 49.4 inches of annual precipitation, which is at the upper limit of ideal lawn watering needs. The county sees 2,833 growing degree days and 11 extreme heat days, indicating a vigorous growing season. These factors lead to fast-growing grass that may require more frequent mowing than inland counties.

Foundation Built on Local Care

While specific regional soil pH and texture data are limited for Bristol, the high precipitation suggests a risk of nutrient leaching. Homeowners should perform a local soil test to determine if they need to balance acidity. Proper aeration is often the key to ensuring the 49.4 inches of rain reaches the root zone effectively.

Navigating Current Dry Spells

The county has faced 11 weeks of drought over the last year, and the entire county is currently listed as abnormally dry. Even with high annual rainfall, short-term dry periods can stress turf quickly. Focused watering during the 11 extreme heat days will help prevent lawn dormancy.

Lush Lawns for the South Coast

The mild 7a climate is perfect for a blend of Kentucky Bluegrass and Tall Fescue for durability. Seeding is most successful after the April 27 spring frost date when soil temperatures rise. You have a long window for maintenance before the first fall frost on October 15.

Lawn Difficulty Score

21/100
Easy
Rainfall9/100
Soil Quality0/100
Temperature6/100
Growing Season40/100
Drought21/100

Soil Summary

pH

N/A

Texture

N/A

Drainage

N/A

Organic Matter

N/A

View full soil details

Top Grass Fit for Bristol County

Cool-season grasses are the general fit here

County soil and zone data are incomplete, so we show a category recommendation rather than a precise cultivar score for Bristol County.

Recommended Grasses

Cool-Season

Kentucky Bluegrass

Poa pratensis

Drought: 2/5Shade: 2/5
Suitability70%
View Seeds
Cool-SeasonTransition Zone

Tall Fescue

Festuca arundinacea

Drought: 4/5Shade: 3/5
Suitability70%
View Seeds
Cool-Season

Perennial Ryegrass

Lolium perenne

Drought: 2/5Shade: 2/5
Suitability70%
View Seeds
Warm-SeasonTransition Zone

Bermudagrass

Cynodon dactylon

Drought: 5/5Shade: 1/5
Suitability70%
View Seeds

Best Grass Seed for Bristol County

Zone 7aCool- and warm-season grasses thrive here.

Find Seeds for Zone 7a

Climate Snapshot

Annual Precip

49.4"

Growing Degree Days

2,833.16

Base 50F

Last Spring Frost

04/27

First Fall Frost

10/15

Days Above 95F

11

Hardiness Zone

7a

Seeding Calendar — Zone 7A

J
F
M
A
M
J
J
A
S
O
N
D
Cool Seed (Best)
Cool Seed (OK)
Warm Seed (Best)
Warm Seed (OK)
Cool Seed (Best)
Cool Seed (OK)
Warm Seed (Best)
Warm Seed (OK)
Optimal (cool)
Acceptable (cool)
Optimal (warm)
Acceptable (warm)

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

50020,000 sq ft

Monthly Deficit

0.0"

inches of water

Monthly Water

0

gallons

Estimated Monthly Cost

$0.00

at $0.008/gallon average

Estimates based on 49" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.

Lawn Care Advisory: Bristol County

Lawn Verdict

Bristol County falls in USDA hardiness zone 7a, a favorable range for both cool- and warm-season grasses. with winter lows reaching around 0.0°F. and 2,833.16 growing degree days, sufficient for most common turfgrasses. Moderate rainfall (49.4 inches) generally supports healthy lawns with minimal supplemental watering.

Seasonal Breakdown

Wait until after April 27 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 73.1°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before October 15; this is the best renovation window. Cool winters (January averages 29.0°F) mean slow or dormant growth; keep debris off the lawn.

Watering Guidance

With 49.4 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

Bristol County is close to the Massachusetts average temperature, USDA zone 7a helps guide grass selection compared to neighboring counties.

Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com

Frequently Asked Questions

What USDA hardiness zone is Bristol County in?
Bristol County is located in USDA hardiness zone 7a, based on the 2023 USDA Plant Hardiness Zone Map. This zone helps determine which grass species are most likely to thrive in the county's climate.
What is the best grass for Bristol County?
Kentucky Bluegrass is the top recommendation for Bristol County, with a match score of 70/100. It grows best in zones 3a–7a and requires 30–40 inches of water annually.
How much rainfall does Bristol County get?
Bristol County receives an average of 49.4 inches of precipitation per year, based on NOAA 30-year climate normals. This provides adequate moisture for most lawn grasses with occasional supplemental watering during dry spells.

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.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor