Robeson County Soil Data
Robeson County, North Carolina
Avg pH
4.9
Texture
Sand
Drainage
N/A
Organic Matter
3.7%
Hydrologic Group
N/A
Data Story
About Soil in Robeson County, North Carolina
The Coastal Plain's Acidic Base
Robeson County soil is quite acidic with a pH of 4.90, which is lower than the state average of 5.14 and far from the national 6.5 median. This acidity level is common in the Coastal Plain and dictates the county's agricultural character.
Sand-Dominant Texture for Fast Flow
Sand is the dominant texture at 66.0%, the highest among these counties, paired with 21.1% silt and 10.6% clay. This creates a very gritty, loose soil that drains exceptionally fast but may struggle to hold onto nutrients.
High Organic Matter for the Region
Organic matter is a bright spot at 3.70%, which is well above the national 2.0% average, though still below the state's 5.12%. The available water capacity of 0.132 in/in is just under the state average of 0.134 in/in.
Drought-Resistant but High Maintenance
The sand-dominant texture ensures that the soil rarely remains waterlogged, though specific drainage class data is not currently recorded. This makes the land ideal for crops that dislike 'wet feet' but requires careful irrigation.
Extended Growing in Zone 8b
The warm 8b hardiness zone is perfect for heat-loving plants and a very long growing season. Your garden will thrive with blueberries and other acid-loving shrubs that love this sandy, high-organic-matter soil.
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: Sand
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Robeson County have?
Robeson County's soil is classified as Sand. This indicates the relative proportions of sand, silt, and clay — 66% sand, 21% silt, and 11% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Robeson County's soil acidic or alkaline?
Robeson County's soil has a low pH of 4.9, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Robeson County?
Drainage class data is not currently available for Robeson County.
What crops or plants grow well in Robeson County's soil?
Based on Robeson County's Sand texture, pH of 4.9, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas, drought-tolerant crops, root vegetables, and sandy-soil specialists.
What USDA soil order is found in Robeson County?
The dominant USDA soil order for Robeson County is not currently available in our dataset.
Planning your lawn? View lawn care data for Robeson County on LawnByCounty.com →
Other Counties in North Carolina
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.