Henry County Soil Data
Henry County, Iowa
Avg pH
6.2
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.8%
Hydrologic Group
N/A
Data Story
About Soil in Henry County, Iowa
Acidic Profiles in Southeast Iowa
Henry County soils have an average pH of 6.20, making them more acidic than both the national median of 6.5 and the Iowa average of 6.43. While we lack specific taxonomic order data, this acidity suggests a need for periodic lime applications in some fields. The soil score of 69.5 is just below the state average of 72.9.
Silt-Rich Mix with Low Sand
The soil is comprised of 56.9% silt, 23.4% clay, and 19.3% sand. This high silt content creates a smooth, floury texture that is excellent for retaining nutrients but can be sensitive to compaction. Proper management is required to maintain a healthy structure for root growth.
Efficient Water Holding Capacity
At 2.77%, the organic matter is lower than the Iowa average of 3.81% but remains higher than the 2.0% national benchmark. The available water capacity is a strength at 0.199 in/in, surpassing the state average. This means the soil is quite efficient at keeping water accessible to plants through the summer.
Understanding Local Water Movement
Data for dominant drainage class and hydrologic groups is currently unavailable for Henry County. Given the high silt and clay percentages, these soils likely hold moisture for extended periods after rain. Gardeners should consider raised beds if they notice water lingering in their yards.
Gardening Success in Zone 5b
Hardiness Zone 5b offers a favorable climate for a wide variety of vegetables and flowers. These acidic, silty soils are particularly well-suited for blueberries or hydrangeas if the pH is managed. With high water capacity, your plants will have a steady supply of moisture to fuel their growth.
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: Silt Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Henry County have?
Henry County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 19% sand, 57% silt, and 23% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Henry County's soil acidic or alkaline?
Henry County's soil has a pH of 6.2, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Henry County?
Drainage class data is not currently available for Henry County.
What crops or plants grow well in Henry County's soil?
Based on Henry County's Silt Loam texture, pH of 6.2, and drainage class, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Henry County?
The dominant USDA soil order for Henry County is not currently available in our dataset.
Planning your lawn? View lawn care data for Henry County on LawnByCounty.com →
Other Counties in Iowa
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.