Geauga County Soil Data
Geauga County, Ohio
USDA SSURGO / PHZMAvg pH
5.5
Texture
Silt loam
Drainage
Well drained
Organic Matter
10.2%
Hydrologic Group
C
Data Story
About Soil in Geauga County, Ohio
Geauga's Acidic Alfisol Foundation
Geauga County is characterized by Alfisols with a pH of 5.48, making it more acidic than both the national median and the state average. These soils are typical for regions that developed under deciduous forests, offering a unique chemical profile for local growers.
Classic Silt Loam Texture
The dominant texture is silt loam, featuring 47.8% silt, 26.2% sand, and 16.1% clay. This specific balance provides a middle-ground workability that is highly prized for its ability to support root systems while retaining moisture.
Rich Organic Earth
Organic matter in Geauga is very high at 10.16%, significantly outperforming the state average of 4.85%. The available water capacity of 0.191 in/in also beats the state average, ensuring a healthy supply of water for thirsty crops.
Well-Drained and Productive
This soil is classified as well-drained and falls into hydrologic group C, meaning it handles rainfall efficiently without excessive pooling. Its 65.3 soil score indicates it is a solid performer for both agricultural and residential use.
Cooler Crops in Zone 6a
Geauga’s Zone 6a climate and rich silt loam are perfect for maple trees, berries, and leafy greens. Take advantage of the high organic matter to grow a lush, productive garden this season.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group C — Moderate-High Runoff
Soils with slow infiltration rates, often with a layer that impedes downward water movement. Higher clay content restricts drainage.
Drainage Class
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
Soil Profile
Dominant texture: Silt loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.5. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Geauga County have?
Geauga County's soil is classified as Silt loam. This indicates the relative proportions of sand, silt, and clay — 26% sand, 48% silt, and 16% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Geauga County's soil acidic or alkaline?
Geauga County's soil has a low pH of 5.5, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Geauga County?
Geauga County has a dominant drainage class of "Well drained." Well-drained soils allow excess water to move through quickly, reducing waterlogging risk and supporting most field and garden crops.
What crops or plants grow well in Geauga County's soil?
Based on Geauga County's Silt loam texture, pH of 5.5, and Well drained, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Geauga County?
Geauga County's dominant soil order is Alfisols. Alfisols are moderate to high base-status soils with a clay-enriched subsoil. They support productive forests and cropland across temperate regions.
Soil & Planting Advisory: Geauga County
Soil Verdict
Geauga County is in USDA hardiness zone 6a, a moderate climate zone. where winter lows can reach -10°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
Geauga County closely matches the Ohio average hardiness conditions.
Planning your lawn? View lawn care data for Geauga County on LawnByCounty.com →
Other Counties in Ohio
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.