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All Soil Types

There are 12 main soil types found across the United States. Each has different characteristics that affect drainage, nutrient availability, pH, and which plants will thrive. Click on any soil type below to read the full guide.

Clay soil

Clay

Heavy, nutrient-rich soil that retains moisture and is slow to drain. Common across the Midwest and Southeast US.

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Sandy soil

Sandy

Light, fast-draining soil that warms quickly. Found in coastal areas and arid regions throughout the country.

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Loam soil

Loam

Balanced mix of sand, silt, and clay considered ideal for most gardening and agriculture.

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Silt soil

Silt

Smooth, fertile soil that holds moisture and nutrients well. Typically found near river floodplains.

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Sandy Loam soil

Sandy Loam

Well-draining blend with more sand than silt or clay. Excellent for root vegetables and herbs.

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Clay Loam soil

Clay Loam

Balanced blend of clay and loam offering good structure and nutrient retention.

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Silty Clay soil

Silty Clay

Fine-textured, nutrient-rich soil that holds water well but can be slow to drain.

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Peat soil

Peat

Dark, organic-rich, acidic soil found in wetland areas. Excellent moisture retention.

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Chalk soil

Chalk

Alkaline, free-draining soil over limestone. Limits acid-loving plants but suits many herbs.

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Sandy Clay soil

Sandy Clay

Dense mix of sand and clay particles. Challenging to work but manageable with amendments.

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Silty Loam soil

Silty Loam

Productive blend of silt and loam found across many US agricultural regions.

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Rocky soil

Rocky

Shallow soil with stone fragments. Well-drained but typically low in organic matter.

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Soil Type Comparison

Soil Type Drainage Nutrient Retention Workability Water Holding Best For
Clay Slow High Difficult High Perennials, shrubs
Sandy Fast Low Easy Low Root vegetables, herbs
Loam Moderate High Easy Moderate Most plants
Silt Moderate High Moderate High Vegetables, grasses
Sandy Loam Good Moderate Easy Moderate Carrots, beans, herbs
Clay Loam Moderate High Moderate High Fruit trees, roses
Silty Clay Slow High Difficult Very High Rice, willows
Peat Poor Very High Moderate Very High Blueberries, azaleas
Chalk Fast Low Moderate Low Lavender, rosemary
Sandy Clay Moderate Moderate Difficult Moderate Adapted natives
Silty Loam Good High Easy Moderate Corn, wheat, tomatoes
Rocky Very Fast Low Difficult Very Low Alpines, succulents