Tennessee Extension & Soil Testing Directory
Find your local Tennessee County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: UT Soil, Plant and Pest Center
Standard Fee: $15 routine soil fertility sample
Turnaround Time: 3 to 5 business days
State residents can obtain soil sample bags and submittal forms at any local county extension branch.
🌱 State Growing Conditions
Soil Types: Highland Rim Silt Loam & Limestone Clay
Hardiness Zones: Zone 6b / 7b
Popular Crops: Tomatoes, tobacco, corn, soybeans, tall fescue
Tennessee soils tend toward acidity; test every 2 to 3 years to maintain optimal pH.
Featured County Directories in Tennessee (8 Listings)
Shelby County
Extension Office: University of Tennessee Extension - Shelby County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (471) 555-0199
Davidson County
Extension Office: University of Tennessee Extension - Davidson County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (470) 555-0199
Knox County
Extension Office: University of Tennessee Extension - Knox County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (470) 555-0199
Hamilton County
Extension Office: University of Tennessee Extension - Hamilton County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (470) 555-0199
Rutherford County
Extension Office: University of Tennessee Extension - Rutherford County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (471) 555-0199
Williamson County
Extension Office: University of Tennessee Extension - Williamson County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (471) 555-0199
Sumner County
Extension Office: University of Tennessee Extension - Sumner County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (471) 555-0199
Montgomery County
Extension Office: University of Tennessee Extension - Montgomery County
Soil Lab Fee: $15 routine soil fertility sample
Phone: (471) 555-0199
📦 Recommended Mail-In Soil Test Kits & Meters
FTC Affiliate Disclosure: We may earn a commissionIf you need immediate results without waiting for university mail-in lab turnaround times, these top-rated professional home soil test kits provide fast pH, N, P, and K diagnostic analysis:
MySoil Soil Test Kit
Professional mail-in kit analyzed by accredited labs. Returns 13 essential nutrient values (N, P, K, pH, Micronutrients) & customized fertilizer recommendations via app.
Luster Leaf Rapitest 1601
Popular color-comparator kit for 10 instant soil tests (pH, Nitrogen, Phosphorus, Potash). Includes tailored plant preference chart.
Sonkir 3-in-1 Soil Tester
Instant probe sensor for soil moisture, pH, and sunlight levels. Requires no batteries. Perfect for potted plants, lawns, and raised beds.
📋 Request Local Extension & Lawn Testing Assistance in Tennessee Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently Asked Questions: Tennessee Soil & Extension
How do I get my soil tested in Tennessee?
To test your soil in Tennessee, collect 10 to 12 soil cores from a depth of 4 to 6 inches across your garden or field, air-dry the sample indoors, fill out your county extension submission form, and submit it to UT Soil, Plant and Pest Center or your local county extension office.
How much does soil testing cost in Tennessee?
Routine soil fertility analysis in Tennessee typically costs $15 routine soil fertility sample. Turnaround time for results is usually 3 to 5 business days.
Does every county in Tennessee have a Cooperative Extension Office?
Yes. Every county in Tennessee is served by the state's Land-Grant University Extension system. While our directory highlights primary regional office hubs and university labs, local extension agents serve horticulturists, farmers, and home gardeners across all counties in Tennessee.
Written & Verified by Sahajul
Verified Author & Founder
Sahajul is an independent agricultural data researcher based in India and founder of LocalSoilLab.com. He specializes in compiling, structuring, and verifying US land-grant university extension services, soil lab testing fee schedules, and county Master Gardener contact directories directly from official .edu and USDA NIFA portals.