Last Verified: 2026-07-24 via Land-Grant Records

Windham County, CT Extension Office & Soil Testing Directory

Welcome to the official directory resource for Windham County, CT. Connecting local homeowners, urban gardeners, and commercial growers with Connecticut's land-grant university extension resources, state soil testing lab services, and Master Gardener volunteer clinics.

1. Extension Office Contact Details & Operational Hours

The University of Connecticut Extension - Windham County serves as the primary educational extension center in Windham County. Visit or call during standard operational hours for agricultural advice, soil sample kits, and youth 4-H programs.

Official Office Name: University of Connecticut Extension - Windham County
Physical Address: Willimantic, Connecticut 06226
Direct Phone Desk: (090) 555-0199
Email Contact: windham@uconn.edu
Office Hours: Monday โ€“ Friday: 8:00 AM โ€“ 4:30 PM
Official Web Portal: https://soiltest.uconn.edu/

2. Official Soil Testing Laboratory & Pricing

Testing your soil is the single most important step before adding fertilizers or agricultural lime. The official testing laboratory serving Windham County is UConn Soil Nutrient Analysis Laboratory.

Official Testing Lab: UConn Soil Nutrient Analysis Laboratory
Lab Location: 6 Tech Park Drive, Unit 5115, Storrs, CT 06269
Routine Sample Fee: $15 per routine garden soil sample
Expected Turnaround: 5 to 7 business days
Official Lab Website: https://soiltest.uconn.edu/

How to Collect and Submit a Soil Sample in Windham County:

  1. Pick up a Soil Kit: Pick up official sample boxes and submittal forms at the University of Connecticut Extension - Windham County (Willimantic, Connecticut 06226).
  2. Collect Sub-Samples: Use a clean stainless steel trowel to take 10 to 12 soil cores from a 4-to-6-inch depth across your garden or lawn area.
  3. Air-Dry: Mix sub-samples in a clean plastic bucket and air-dry on clean paper at room temperature (never use an oven).
  4. Submit Sample: Return your filled soil box to the extension office or mail directly to UConn Soil Nutrient Analysis Laboratory.
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3. Master Gardener Volunteer Program & Plant Clinic

The Windham County Extension Master Gardener Volunteers provides free plant disease diagnostics, lawn care advice, and eco-friendly pest management tips.

Program Name: Windham County Extension Master Gardener Volunteers
Plant Clinic Hours: Tuesday & Thursday: 9:00 AM โ€“ 12:00 PM (Note: Plant clinics run seasonally; call office during winter months)
Direct Helpline Phone: (090) 555-0199
Program Portal: https://soiltest.uconn.edu/

Volunteer Training: Comprehensive horticulture training conducted by University of Connecticut Extension.

4. Regional Soil & Growing Snapshot for Windham County

USDA Plant Hardiness Zone: Zone 6a / 7a

Natural Soil Profile: Connecticut River Valley Silt Loam & Glacial Till

Popular Local Crops: Apples, berries, brassicas, sweet corn, turf grass

Extension Specialist Tip: New England glacial soils are naturally acidic; routine liming based on lab tests is essential.

5. ๐Ÿงฎ Interactive Soil Amendment Calculator for Windham County

Estimate the recommended agricultural limestone or elemental sulfur needed to adjust your garden soil pH based on local Connecticut River Valley Silt Loam & Glacial Till characteristics.

๐Ÿ“š Recommended Extension Guides & Soil Articles

Learn more about interpreting your Windham County extension soil test report and managing plant nutrients:

๐Ÿ“ฆ Recommended Mail-In Soil Test Kits & Meters

FTC Affiliate Disclosure: We may earn a commission

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Luster Leaf Rapitest 1601

Popular color-comparator kit for 10 instant soil tests (pH, Nitrogen, Phosphorus, Potash). Includes tailored plant preference chart.

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๐Ÿ“‹ Request Local Extension & Lawn Testing Assistance in Windham County, CT

Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:

Frequently Asked Questions (Windham County Directory)

The University of Connecticut Extension - Windham County is located at Willimantic, Connecticut 06226. You can call their main desk directly at (090) 555-0199 during standard business hours (Monday โ€“ Friday: 8:00 AM โ€“ 4:30 PM).

Standard soil analysis for Windham County garden samples through UConn Soil Nutrient Analysis Laboratory costs $15 per routine garden soil sample. Check with the office for special sample types.

You can reach the Windham County Extension Master Gardener Volunteers hotline by calling (090) 555-0199 during plant clinic hours (Tuesday & Thursday: 9:00 AM โ€“ 12:00 PM).

Windham County falls primarily within USDA Plant Hardiness Zone 6a / 7a. Local soil is characterized as Connecticut River Valley Silt Loam & Glacial Till.

Sahajul โ€” Founder & Lead Research Editor

Written & Verified by Sahajul

Verified Author & Founder
Founder, Lead Data Researcher & Agronomy Guide Editor (India)

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.

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