Alcona County Soil Data
Alcona County, Michigan
USDA SSURGO / PHZMAvg pH
5.2
Texture
Sandy Loam
Drainage
N/A
Organic Matter
14.4%
Hydrologic Group
N/A
Data Story
About Soil in Alcona County, Michigan
Acidic and Gritty Alcona Earth
Alcona County soils are noticeably acidic with an average pH of 5.22, falling well below the national median of 6.5. While specific taxonomic data is limited for this region, the low pH suggests a need for lime amendments for many garden crops. Local gardeners must manage this acidity to unlock essential nutrients for plant growth.
High Sand Content Limits Retention
The soil profile is dominated by 68.6% sand, making it exceptionally easy to work but prone to rapid drying. With only 11.3% clay and 17.5% silt, these soils provide excellent aeration but struggle to hold onto water and fertilizers. This gritty mix requires frequent, smaller applications of water to prevent leaching.
Rich Organic Matter, Lower Water Capacity
At 14.43%, Alcona's organic matter is significantly higher than the 2% national average, though it trails the Michigan state average of 19.76%. The available water capacity (AWC) of 0.158 in/in is also below the state average of 0.202 in/in. This suggests that despite the organic richness, the sandy texture limits the soil's ability to act as a reservoir.
Navigating Sparse Hydrologic Data
Formal drainage and hydrologic group classifications are not widely recorded for Alcona County. However, the high sand percentage typically indicates rapid drainage and high permeability. Farmers and builders should expect water to move through the profile quickly, reducing the risk of ponding.
Thriving in Hardiness Zone 5a
In USDA Hardiness Zone 5a, Alcona County is well-suited for cool-weather staples like potatoes and berries that tolerate sandier conditions. The acidic environment is particularly favorable for blueberries and evergreens. With a little extra irrigation, your Alcona garden can become a productive landscape.
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: Sandy Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.2. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Alcona County have?
Alcona County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 69% sand, 17% silt, and 11% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Alcona County's soil acidic or alkaline?
Alcona County's soil has a low pH of 5.2, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Alcona County?
Drainage class data is not currently available for Alcona County.
What crops or plants grow well in Alcona County's soil?
Based on Alcona County's Sandy Loam texture, pH of 5.2, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens.
What USDA soil order is found in Alcona County?
The dominant USDA soil order for Alcona County is not currently available in our dataset.
Soil & Planting Advisory: Alcona County
Soil Verdict
Alcona 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
Alcona County closely matches the Michigan average hardiness conditions. The zone range of 5a-6a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Alcona 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.