Santa Cruz County Soil Data
Santa Cruz County, California
USDA SSURGO / PHZMAvg pH
6.1
Texture
Loam
Drainage
N/A
Organic Matter
8.7%
Hydrologic Group
D
Data Story
About Soil in Santa Cruz County, California
Rich, Acidic Soils on the Coast
Santa Cruz County boasts a high soil score of 65.0, reflecting its exceptional agricultural value. Its average pH of 6.09 is noticeably more acidic than both the national median of 6.5 and the state average of 6.34. This profile creates a specific environment where acid-loving plants can truly thrive.
Balanced Texture with a Sandy Edge
The soil is nearly half sand at 49.9%, balanced by 29.7% silt and 18.2% clay. This high sand content ensures excellent workability, though the clay provides enough structure for nutrient retention. It is a versatile mix that suits a variety of deep-rooted crops and ornamental plants.
Exceptional Organic Matter Levels
With a staggering 8.74% organic matter, Santa Cruz far exceeds the state average of 3.30% and the national average of 2.0%. Its available water capacity of 0.159 inches per inch is also higher than the state average of 0.141. These numbers indicate a highly fertile soil that holds moisture and nutrients efficiently.
Handling Slow Infiltration Rates
The county is categorized under Hydrologic Group D, which typically indicates high runoff potential and very slow infiltration. This means that while the soil is fertile, water moves through it slowly once it is saturated. Gardeners should plan for proper runoff management to prevent waterlogging during the rainy season.
Blueberries and Berries Thrive in 9b
The combination of 9b hardiness and acidic, organic-rich soil makes Santa Cruz perfect for blueberries, strawberries, and redwoods. These conditions provide a rare opportunity to grow specialty crops that struggle in more alkaline regions. Start your garden today to experience the productivity of some of California's best soil.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group D — High Runoff
Clay soils with very slow infiltration rates. Highest runoff potential. These soils have a permanent high water table or are shallow over impervious material.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
Browse products to improve your soil health and lawn performance.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Santa Cruz County have?
Santa Cruz County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 50% sand, 30% silt, and 18% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Santa Cruz County's soil acidic or alkaline?
Santa Cruz County's soil has a pH of 6.1, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Santa Cruz County?
Drainage class data is not currently available for Santa Cruz County.
What crops or plants grow well in Santa Cruz County's soil?
Based on Santa Cruz County's Loam texture, pH of 6.1, 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 Santa Cruz County?
The dominant USDA soil order for Santa Cruz County is not currently available in our dataset.
Soil & Planting Advisory: Santa Cruz County
Soil Verdict
Santa Cruz County is in USDA hardiness zone 9b, a warm climate zone. where winter lows can reach 25°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
Santa Cruz County closely matches the California average hardiness conditions. 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 Santa Cruz County on LawnByCounty.com →
Other Counties in California
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.