Washington County Soil Data
Washington County, Maine
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Washington County, Maine
The Acidic Ground of Down East
Washington County likely shares the state's acidic average pH of 3.88. This is quite low compared to the 6.5 national median, creating a perfect environment for acid-loving plants like wild blueberries.
Glacial Legacy and Soil Texture
Soil texture data is not currently recorded, but the county's glacial history often results in diverse, rocky textures. These physical traits determine how easily roots can penetrate the ground to access water and minerals.
Naturally Rich in Organic Matter
Maine's average organic matter of 35.77% suggests the soil here is naturally rich in carbon compared to the 2.0% national average. The state's 0.242 in/in water capacity means the land is generally good at holding onto moisture through the season.
Coastal Runoff and Drainage
Drainage data is limited, which is a key consideration for anyone building near the coast or in low-lying bogs. Understanding how your land handles runoff is essential for both farming and home construction projects.
Milder Winters in Zone 5b
With a Zone 5b rating, you have a slightly longer growing season than your northern neighbors. Focus on crops that enjoy the cool, moist Atlantic air and the region's unique peat-rich environments.
Soil Composition
Composition data not available for this county.
Soil pH
pH data not available for this county.
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Unknown
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
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Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Washington County have?
Washington County's soil is classified as Unknown. This indicates the relative proportions of sand, silt, and clay — sand percentage unavailable, silt percentage unavailable, and clay percentage unavailable. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Washington County's soil acidic or alkaline?
pH data is not available for Washington County.
What is the drainage class for Washington County?
Drainage class data is not currently available for Washington County.
What crops or plants grow well in Washington County's soil?
Based on Washington County's Unknown texture, soil pH, and drainage class, the soil is well suited for a variety of crops depending on local conditions.
What USDA soil order is found in Washington County?
The dominant USDA soil order for Washington County is not currently available in our dataset.
Soil & Planting Advisory: Washington County
Soil Verdict
Washington County is in USDA hardiness zone 5b, a cold climate zone. where winter lows can reach -15°F. Freeze-thaw cycles are moderate; soil biology slows in winter but recovers reliably in spring, supporting a broad range of plants.
Planting Guidance
A wide plant palette is possible: deciduous trees, most shrubs, cool-season vegetables, and many perennials thrive here. Winter protection (mulch, burlap wraps) helps push the zone boundary for desired species. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Moderate freeze-thaw cycles naturally aerate the soil but can also cause compaction in clay-heavy areas; annual core aeration is beneficial. Organic matter amendments decompose at a moderate pace — aim for 3-5% organic content for optimal fertility. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Washington County closely matches the Maine average hardiness conditions. The zone range of 4b-6a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Washington County on LawnByCounty.com →
Other Counties in Maine
Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.