Silver Bow County Soil Data
Silver Bow County, Montana
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Silver Bow County, Montana
Mining the Mountain Soil
Specific pH and taxonomic data are missing for Silver Bow County in this dataset. As with most of Montana, the soil likely trends toward the state average pH of 7.43, which is more alkaline than the national 6.5. The region’s history of mineral extraction also influences the local soil chemistry.
Rocky Foundations and High Altitudes
Sand, silt, and clay percentages are not recorded for this county. The soil here is often thin and rocky, characteristic of the high-altitude terrain surrounding Butte. These textures typically offer rapid drainage but can be difficult to till for traditional gardening.
Adapting to High-Country Constraints
While local organic matter data is unavailable, the state average is 2.54%. In high-altitude Silver Bow, building up organic matter is essential for improving water retention in thin soils. Every bit of compost helps turn these mountain minerals into productive garden beds.
Fast Drainage and Steep Slopes
There is no recorded dominant drainage class or hydrologic group for this area. In a mountain environment like this, drainage is usually rapid, which can lead to dry conditions even with adequate rainfall. Builders must be mindful of the rocky subsurface when planning foundations or septic systems.
Hardy Plants for Zone 5a
With a Hardiness Zone of 5a, Silver Bow County requires plants that can handle cold nights and a short summer. Focus on hardy perennials and fast-maturing vegetables that thrive in cool air. Raised beds are highly recommended to bypass rocky ground and improve soil quality.
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 Silver Bow County have?
Silver Bow 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 Silver Bow County's soil acidic or alkaline?
pH data is not available for Silver Bow County.
What is the drainage class for Silver Bow County?
Drainage class data is not currently available for Silver Bow County.
What crops or plants grow well in Silver Bow County's soil?
Based on Silver Bow 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 Silver Bow County?
The dominant USDA soil order for Silver Bow County is not currently available in our dataset.
Soil & Planting Advisory: Silver Bow County
Soil Verdict
Silver Bow 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
Silver Bow County is somewhat warmer than the Montana statewide average. The zone range of 4b-5a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Silver Bow County on LawnByCounty.com →
Other Counties in Montana
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.