LawnByCounty

Lawn Care Guide for Cumberland County

Cumberland County, Maine

USDA SSURGO / PHZM

Data Story

About Lawn Care in Cumberland County, Maine

High Difficulty for Coastal Lawns

Cumberland County presents a significant challenge with a lawn difficulty score of 39.1, well below the national and state averages. The 6a hardiness zone offers more variety for grass types, but environmental stressors make maintenance more demanding here.

High Precipitation but High Demand

The county receives a generous 49.4 inches of rain, yet 2100 growing degree days mean turf is very active and consumes resources quickly. Four days of extreme heat per year can lead to rapid evaporation, requiring careful monitoring of soil moisture.

Extreme Acidity Requires Major Correction

The soil foundation is highly acidic with a pH of 3.86, which is far below the ideal 6.0-7.0 range for healthy grass. With a sandy content of 29.0%, you will likely need significant lime applications and organic amendments to help the soil hold onto nutrients.

Constant Drought Stress in Cumberland

The county endured 41 weeks of drought last year, and 100% of the area is currently in severe drought. Prioritize water conservation by letting your grass grow longer, which shades the soil and reduces the need for supplemental irrigation.

Planting for Success in Zone 6a

The May 2 spring frost date signals the start of the primary growing window for cool-season mixes. Ensure your lawn is well-established before the October 10 fall frost to build the resilience needed for Cumberland’s challenging conditions.

Lawn Difficulty Score

32/100
Moderate
Rainfall9/100
Soil Quality20/100
Temperature2/100
Growing Season40/100
Drought79/100

Soil Summary

pH

3.9

Texture

N/A

Drainage

N/A

Organic Matter

44.2%

View full soil details

Top Grass Fit for Cumberland County

82/ 100

Excellent match

Pennington Smart Seed Sun & Shade

Pennington

Top cultivar score: 82/100

Estimated — county soil data incomplete.

USDA Zone Match100

Zone 6a vs Tall Fescue's 3–8 band.

Soil pH Fit10

Soil pH 3.85635160417151 vs Tall Fescue's 5.5–6.5 window.

Moisture Fit100

Precipitation 49.41833333333333" + soil AWC vs Tall Fescue's 20–30" need.

Establishment Window100

Growing-degree-days + frost window vs a beginner-difficulty establishment.

Pennington Smart Seed Sun & Shade is the best value in the cool-season grass seed market. Period. You get a quality fescue/KBG blend with genuine drought tolerance coating at a price point significantly below premium options like BBU or Barenbrug RTF.
From The Lawn Report editorial review • rated 4.4/5
Shop Pennington Smart Seed Sun & Shade

In Cumberland County, USDA zone 6a, soil pH 3.9, Pennington Smart Seed Sun & Shade scores 82/100 — a strong zone match, adequate moisture, and a long enough establishment window.

Recommended Grasses

Cool-Season

Kentucky Bluegrass

Poa pratensis

Drought: 2/5Shade: 2/5
Suitability55%
View Seeds
Cool-SeasonTransition Zone

Tall Fescue

Festuca arundinacea

Drought: 4/5Shade: 3/5
Suitability55%
View Seeds
Cool-Season

Perennial Ryegrass

Lolium perenne

Drought: 2/5Shade: 2/5
Suitability55%
View Seeds
Cool-Season

Fine Fescue

Festuca spp.

Drought: 3/5Shade: 5/5
Suitability55%
View Seeds

Best Grass Seed for Cumberland County

Zone 6aCool- and warm-season grasses thrive here.

Find Seeds for Zone 6a

Climate Snapshot

Annual Precip

49.4"

Growing Degree Days

2,100.16

Base 50F

Last Spring Frost

05/02

First Fall Frost

10/10

Days Above 95F

4

Hardiness Zone

6a

Seeding Calendar — Zone 6A

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.

Common Lawn Problems in Cumberland County

Acidic Soil

Soil pH of 3.9 is below the ideal range for most grasses (6.0-7.0). Apply agricultural lime to raise pH gradually.

Persistent Drought Conditions

Cumberland County experienced drought conditions for 41 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.

Learn more about regional lawn challenges at The Lawn Report.

Lawn Care Advisory: Cumberland County

Lawn Verdict

Cumberland County sits in USDA hardiness zone 6a, a transitional zone where cool-season grasses dominate but some warm-season varieties can survive. with winter lows reaching around -10.0°F. though only 2,100.16 growing degree days favor cool-season varieties like Kentucky bluegrass and fescue. Moderate rainfall (49.4 inches) generally supports healthy lawns with minimal supplemental watering.

Seasonal Breakdown

Wait until after May 2 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 68.9°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before October 10; this is the best renovation window. Cool winters (January averages 20.4°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 severe drought according to the US Drought Monitor. Mandatory watering restrictions may be in effect; follow local guidelines and prioritize tree and shrub watering over turf. Cool summers reduce water demand; overwatering is a bigger risk than drought stress.

Regional Context

Cumberland County is close to the Maine average temperature, USDA zone 6a 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 Cumberland County in?
Cumberland County is located in USDA hardiness zone 6a, 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 Cumberland County?
Kentucky Bluegrass is the top recommendation for Cumberland County, with a match score of 55/100. It grows best in zones 3a–7a and requires 30–40 inches of water annually.
How much rainfall does Cumberland County get?
Cumberland 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.
What is the soil pH in Cumberland County?
The average soil pH in Cumberland County is 3.9, based on USDA SSURGO data. This acidic soil may benefit from lime application to raise pH for optimal grass growth.

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