Yuma County Soil Data
Yuma County, Arizona
USDA SSURGO / PHZMAvg pH
N/A
Texture
Unknown
Drainage
N/A
Organic Matter
N/A
Hydrologic Group
N/A
Data Story
About Soil in Yuma County, Arizona
The Winter Salad Bowl
Yuma County is an agricultural powerhouse, even though its official soil taxonomy and pH data are currently limited. Without a specific average, local growers should test to see how their fields compare to the 6.5 national median. The desert silt here has a reputation for productivity when managed correctly.
River Valley Resilience
Specific sand, silt, and clay percentages are not recorded in the current dataset for this county. In this river-valley region, the texture often allows for high drainage and easy workability. Determining your own soil's mix is the secret to managing Yuma's unique irrigation needs.
Desert Productivity Secrets
National benchmarks like the 2.0% organic matter average are the goal, though Yuma's specific figures are currently unmapped. The county's reputation for winter vegetables proves that with water and care, the growing potential is massive. Adding organic material helps retain moisture in one of the world's sunniest places.
The Pulse of the Colorado River
Official drainage classes and hydrologic groups are not currently documented for Yuma County. In an area reliant on the Colorado River, understanding hydrology is the difference between a thriving crop and a salt-damaged field. Careful monitoring of water movement is essential for long-term land health.
Year-Round Growing in Zone 10a
Yuma County enjoys Hardiness Zone 10a, the warmest in the state, allowing for a nearly endless growing season. This is the 'Winter Salad Bowl' of the nation, where leafy greens and citrus flourish. Take advantage of the heat and sunshine by starting your year-round garden today.
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 Yuma County have?
Yuma 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 Yuma County's soil acidic or alkaline?
pH data is not available for Yuma County.
What is the drainage class for Yuma County?
Drainage class data is not currently available for Yuma County.
What crops or plants grow well in Yuma County's soil?
Based on Yuma 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 Yuma County?
The dominant USDA soil order for Yuma County is not currently available in our dataset.
Soil & Planting Advisory: Yuma County
Soil Verdict
Yuma County is in USDA hardiness zone 10a, a very warm climate zone. where winter lows can reach 30°F. Warm winters keep soil biology active nearly year-round, accelerating decomposition but increasing pest and disease pressure in topsoil.
Planting Guidance
Tropical and subtropical plants are viable. Year-round gardening is possible, though summer heat may limit some cool-season crops. Frost is rare; tender plants can overwinter with minimal 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
Rapid organic matter turnover means soils can become nutrient-poor quickly; test annually and fertilize based on results. High soil temperatures favor certain soilborne pathogens; practice crop rotation and avoid overwatering.
Regional Context
Yuma County is significantly warmer than the Arizona average, shifting effective hardiness by roughly 1.7 zones. The zone range of 9a-10a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Yuma County on LawnByCounty.com →
Other Counties in Arizona
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.