Schoolcraft County Soil Data
Schoolcraft County, Michigan
USDA SSURGO / PHZMAvg pH
4.5
Texture
Water
Drainage
N/A
Organic Matter
58.6%
Hydrologic Group
N/A
Data Story
About Soil in Schoolcraft County, Michigan
Acidic Wetlands of the Upper Peninsula
Schoolcraft County presents a unique profile with an average pH of 4.47, making it far more acidic than the national median of 6.5. This high acidity is typical for the region's vast wetlands and peatlands. Because so much of the county is dominated by water-rich environments, standard taxonomic classifications are limited.
Minimal Mineral Content
The soil composition is unusually low in mineral particles, with only 16.1% sand, 7.3% silt, and a mere 1.0% clay. The dominant 'texture' is often simply water or muck, reflecting the county's boggy landscape. This means the soil lacks traditional structural workability but serves as a massive carbon sink.
Massive Organic Matter Reserves
Schoolcraft boasts an incredible 58.62% organic matter, nearly triple the Michigan state average of 19.76%. This leads to a very high available water capacity of 0.395 in/in, doubling the state benchmark. While nutrient-rich, the high acidity and saturation limit the types of plants that can thrive here.
A Landscape Defined by Water
Specific drainage and hydrologic group data are unavailable, as much of the area remains in a natural, saturated state. The high organic content acts like a sponge, holding vast amounts of water and influencing the entire regional ecosystem. Building and farming require specialized knowledge of these unique, wet conditions.
Toughened Growth in Zone 5a
The cooler 5a hardiness zone and acidic soils favor specialty crops like blueberries and cranberries. Traditional gardens will likely require lime to raise the pH and raised beds to escape the heavy saturation. However, the sheer organic wealth of this land offers a unique opportunity for native, acid-loving species.
Soil Composition
Soil pH
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: Water
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 4.5. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Schoolcraft County have?
Schoolcraft County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 16% sand, 7% silt, and 1% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Schoolcraft County's soil acidic or alkaline?
Schoolcraft County's soil has a low pH of 4.5, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Schoolcraft County?
Drainage class data is not currently available for Schoolcraft County.
What crops or plants grow well in Schoolcraft County's soil?
Based on Schoolcraft County's Water texture, pH of 4.5, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas.
What USDA soil order is found in Schoolcraft County?
The dominant USDA soil order for Schoolcraft County is not currently available in our dataset.
Soil & Planting Advisory: Schoolcraft County
Soil Verdict
Schoolcraft County is in USDA hardiness zone 5a, a cold climate zone. where winter lows can reach -20°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. With extreme winter lows, any marginally hardy plants need heavy mulch and wind protection. 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
Schoolcraft County closely matches the Michigan average hardiness conditions.
Planning your lawn? View lawn care data for Schoolcraft County on LawnByCounty.com →
Other Counties in Michigan
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.