LawnByCounty

Lawn Care Guide for Curry County

Curry County, Oregon

USDA SSURGO / PHZM

Data Story

About Lawn Care in Curry County, Oregon

Subtropical Influence in Curry County

Curry County’s lawn difficulty score of 33.8 is lower than the state average due to extreme rainfall and very acidic soils. However, its Hardiness Zone 9b is one of the warmest in Oregon, offering a unique opportunity for specialized turf.

The Wettest Corner of the State

An incredible 81.8 inches of rain falls here annually, creating a constant challenge for soil aeration and disease control. Despite the rain, only 9 extreme heat days occur, keeping your lawn cool and hydrated through most of the year.

Extreme Soil Acidity Management

At 4.38, the soil pH in Curry County is among the most acidic in the nation, requiring heavy and frequent lime applications to reach the ideal 6.0 range. The 32.3% sand content helps with drainage, which is vital given the heavy annual rainfall.

Stable Moisture with Low Drought

Currently, only 26.1% of the county is abnormally dry, and there were only 25 weeks in drought last year. Your biggest water challenge isn't a lack of it, but managing the runoff and nutrient leaching that comes with heavy Pacific storms.

Winter-Ready for Early Growth

Because the last spring frost hits early on February 17, you can start your lawn prep before almost anyone else in Oregon. Fine Fescue and Seashore Paspalum are excellent choices for these wet, acidic coastal conditions.

Lawn Difficulty Score

34/100
Moderate
Rainfall60/100
Soil Quality20/100
Temperature4/100
Growing Season40/100
Drought48/100

Soil Summary

pH

4.4

Texture

N/A

Drainage

N/A

Organic Matter

55.5%

View full soil details

Top Grass Fit for Curry County

75/ 100

Strong match

Scotts Turf Builder Bermudagrass

Scotts

Top cultivar score: 75/100

USDA Zone Match100

Zone 9b vs Bermudagrass's 7–10 band.

Soil pH Fit10

Soil pH 4.37661868055556 vs Bermudagrass's 6–6.5 window.

Moisture Fit100

Precipitation 81.84166666666665" + soil AWC vs Bermudagrass's 20–30" need.

Establishment Window70

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

If you live in the southern US (zones 7-10) and your lawn gets full sun, Bermudagrass is almost certainly the right choice — and Scotts is the easiest entry point.
From The Lawn Report editorial review • rated 4.2/5

Limited product coverage — one vetted cultivar for this species.

Shop Scotts Turf Builder Bermudagrass

In Curry County, USDA zone 9b, soil pH 4.4, Scotts Turf Builder Bermudagrass scores 75/100 — a strong zone match, adequate moisture, and a workable establishment window.

Why we ruled these out

  • Outsidepride Midnight Kentucky Bluegrass SeedUSDA zone 9b is above Outsidepride Midnight Kentucky Bluegrass Seed's effective range (2–8); not recommended for this county.

See our fit-score methodology for how survivability is determined.

Recommended Grasses

Warm-SeasonTransition Zone

Bermudagrass

Cynodon dactylon

Drought: 5/5Shade: 1/5
Suitability55%
View Seeds
Warm-Season

St. Augustinegrass

Stenotaphrum secundatum

Drought: 2/5Shade: 4/5
Suitability55%
View Seeds
Warm-Season

Bahiagrass

Paspalum notatum

Drought: 4/5Shade: 2/5
Suitability55%
View Seeds
Warm-Season

Seashore Paspalum

Paspalum vaginatum

Drought: 3/5Shade: 2/5
Suitability55%
View Seeds

Best Grass Seed for Curry County

Zone 9bWarm-season grasses thrive here.

Find Seeds for Zone 9b

Climate Snapshot

Annual Precip

81.8"

Growing Degree Days

1,968.75

Base 50F

Last Spring Frost

02/17

First Fall Frost

12/16

Days Above 95F

9

Hardiness Zone

9b

Seeding Calendar — Zone 9B

J
F
M
A
M
J
J
A
S
O
N
D
Warm Seed (Best)
Warm 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

  • Raise mowing height to reduce heat stress
  • 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
  • Overseed with ryegrass for winter color

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 82" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.

Common Lawn Problems in Curry County

Excess Moisture & Fungal Disease

High annual rainfall (82 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.

Acidic Soil

Soil pH of 4.4 is below the ideal range for most grasses (6.0-7.0). Apply agricultural lime to raise pH gradually.

Persistent Drought Conditions

Curry County experienced drought conditions for 25 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: Curry County

Lawn Verdict

Curry County is in USDA hardiness zone 9b, a warm zone well-suited to heat-tolerant grasses. with winter lows reaching around 25.0°F. though only 1,968.75 growing degree days favor cool-season varieties like Kentucky bluegrass and fescue. Mild year-round temperatures create a relatively low-stress environment for turf. High annual precipitation (81.8 inches) supports lush growth but increases disease pressure.

Seasonal Breakdown

Wait until after February 17 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 62.2°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before December 16; this is the best renovation window. Mild winters (January averages 47.6°F) allow year-round mowing for warm-season lawns and minimal dormancy.

Watering Guidance

Curry County receives abundant rainfall (81.8 inches annually), so lawns rarely need supplemental irrigation. Currently, 26.3% 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

Curry County is 3.6°F warmer than the Oregon average, it is significantly wetter than the state average (44.4 inches more), USDA zone 9b 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 Curry County in?
Curry County is located in USDA hardiness zone 9b, 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 Curry County?
Bermudagrass is the top recommendation for Curry County, with a match score of 55/100. It grows best in zones 7a–10b and requires 20–30 inches of water annually.
How much rainfall does Curry County get?
Curry County receives an average of 81.8 inches of precipitation per year, based on NOAA 30-year climate normals. This abundant rainfall supports a wide range of grass species with minimal supplemental irrigation.
What is the soil pH in Curry County?
The average soil pH in Curry County is 4.4, 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