Maine Extension & Soil Testing Directory
Find your local Maine County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: Maine Soil Testing Service
Standard Fee: $18 routine garden soil sample
Turnaround Time: 5 to 7 business days
State residents can obtain soil sample bags and submittal forms at any local county extension branch.
🌱 State Growing Conditions
Soil Types: Glacial Sandy Loam & Silt Loam
Hardiness Zones: Zone 5b / 6a
Popular Crops: Blueberries, potatoes, brassicas, root vegetables, apples
Maine soils are naturally acidic (pH 4.8 - 5.5); calcitic lime applications are essential for vegetable crops.
Featured County Directories in Maine (1 Listing)
Cumberland County
Extension Office: UMaine Extension - Cumberland County
Soil Lab Fee: $18 routine garden soil sample
Phone: (207) 781-6099
Looking for Another County in Maine?
Every county in Maine 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 Maine Soil Testing Service or contact our editorial desk for direct local office hours.
Request Local Extension Info for Your CountyFrequently Asked Questions: Maine Soil & Extension
How do I get my soil tested in Maine?
To test your soil in Maine, 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 Maine Soil Testing Service or your local county extension office.
How much does soil testing cost in Maine?
Routine soil fertility analysis in Maine typically costs $18 routine garden soil sample. Turnaround time for results is usually 5 to 7 business days.
Does every county in Maine have a Cooperative Extension Office?
Yes. Every county in Maine 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 Maine.
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.