District of Columbia Extension & Soil Testing Directory
Find your local District of Columbia County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: UDC Environmental Quality Testing Laboratory
Standard Fee: $15 urban garden soil test
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: Urban Alluvial Loam & Reclaimed Fill
Hardiness Zones: Zone 7a / 7b
Popular Crops: Urban vegetables, herbs, berries, community garden crops
Urban soils in DC should be tested for heavy metals (lead) before establishing edible gardens.
Featured County Directories in District of Columbia (1 Listing)
District of Columbia
Extension Office: University of the District of Columbia (UDC CAUSES) Extension - District of Columbia
Soil Lab Fee: $15 urban garden soil test
Phone: (110) 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 District of Columbia Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently Asked Questions: District of Columbia Soil & Extension
How do I get my soil tested in District of Columbia?
To test your soil in District of Columbia, 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 UDC Environmental Quality Testing Laboratory or your local county extension office.
How much does soil testing cost in District of Columbia?
Routine soil fertility analysis in District of Columbia typically costs $15 urban garden soil test. Turnaround time for results is usually 5 to 7 business days.
Does every county in District of Columbia have a Cooperative Extension Office?
Yes. Every county in District of Columbia 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 District of Columbia.
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.