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, Water and Plant Testing Laboratory
Standard Fee: $15 per routine garden soil 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: Central Basin Limestone Silt Loam & Clay
Hardiness Zones: Zone 7a
Popular Crops: Tomatoes, peppers, berries, tall fescue, sweet corn
Nashville limestone soils are naturally rich in phosphate; test before adding N-P-K blends.
Featured County Directories in Tennessee (1 Listing)
Davidson County
Extension Office: UT Extension - Davidson County
Soil Lab Fee: $15 per routine garden soil sample
Phone: (615) 862-5995
Looking for Another County in Tennessee?
Every county in Tennessee is supported by the state Land-Grant University Extension system. If your specific county directory is currently being indexed, you can submit your soil samples directly to UT Soil, Water and Plant Testing Laboratory or contact our editorial desk for direct local office hours.
Request Local Extension Info for Your CountyFrequently 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, Water and Plant Testing Laboratory or your local county extension office.
How much does soil testing cost in Tennessee?
Routine soil fertility analysis in Tennessee typically costs $15 per routine garden soil 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.