Hillsborough County Soil Data
Hillsborough County, New Hampshire
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Hillsborough County, New Hampshire
Southern New Hampshire Soil Heritage
Hillsborough County's specific pH and taxonomic data are currently unrecorded. Regional patterns indicate the soil is likely more acidic than the national median of 6.5. This acidity typically reflects the granite and metamorphic bedrock found throughout the southern hills.
Urban and Rural Composition Mix
Specific sand, silt, and clay percentages are not currently available for this county. The area features a mix of river-deposited sediments and rocky glacial till. This variety means that soil workability can change significantly from the city centers to the rural outskirts.
Hidden Growth Potential
No data is currently available for organic matter or available water capacity in Hillsborough. While we lack specific numbers, the state average of 32.6% organic matter serves as a likely benchmark. Local gardeners should focus on building soil health through consistent organic amendments.
Water Flow in an Active Landscape
The dominant drainage class is not officially listed in this dataset. Because the county includes diverse terrain from riverbanks to rolling hills, drainage varies locally. Homeowners should check for site-specific drainage issues before starting any major garden projects.
A Warm Start in Zone 6a
In Zone 6a, you enjoy a longer and warmer growing season compared to the northern counties. This climate is excellent for heat-loving crops like zucchini, beans, and certain varieties of corn. Start your garden today to take full advantage of the southern New Hampshire sun.
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 Hillsborough County have?
Hillsborough 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 Hillsborough County's soil acidic or alkaline?
pH data is not available for Hillsborough County.
What is the drainage class for Hillsborough County?
Drainage class data is not currently available for Hillsborough County.
What crops or plants grow well in Hillsborough County's soil?
Based on Hillsborough 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 Hillsborough County?
The dominant USDA soil order for Hillsborough County is not currently available in our dataset.
Soil & Planting Advisory: Hillsborough County
Soil Verdict
Hillsborough 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
Hillsborough County is somewhat warmer than the New Hampshire statewide average. The zone range of 5b-6a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Hillsborough County on LawnByCounty.com →
Other Counties in New Hampshire
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.