Trusted Analytics & Recommendations to Help You Grow
UNH Cooperative Extension provides soil analysis and fertilizer recommendations to farmers, homeowners and researchers. Recommendations are based on the latest research and are specific to the crop being grown.
*Please Note: Soil samples can be dropped off in the blue bins outside Barton 206, Monday-Friday, 8am-4pm. Blank submission forms are available here. Soil samples can also be dropped off at our drop-box outside in the Sage Way parking lot, just to the right of Barton Hall, which is open 24/7. Due to weather, blank submission forms are not available at this outside location. Be sure to bring your own form from our website.
For in-person assistance, our soil staff is available on Tuesdays and Thursdays, 8am-4pm. For help outside these hours, call 603-862-0509 or email soil.testing@unh.edu, and we’ll get back to you as soon as possible.
If you are mailing in sample(s), please send all samples to the address below.
Mail all samples to:
UNH Extension Soil Testing Service
Barton Hall B206
34 Sage Way
Durham, NH 03824
Turnaround time for soil testing is approximately three weeks from the time we receive the sample(s). Thank you for your patience. For questions, please send an email to soil.testing@unh.edu or leave a message at (603)-862-0509.
**Our new drop-box is located at the front of the Sage Way visitor parking lot just to the right of Barton Hall. This drop-box is for soil samples only. Due to weather, blank submission forms are not available here. All insect and plant disease samples must be sent by mail or dropped off in person during regular business hours.
Frequently asked questions
Location, Hours and contact information
Soil Testing Form
Resources
Learn More
Wood ash has a long history of use in New England. Our Yankee ancestors used wood ash to make lye for soaps, to clean glas... Learn More
Articles
Events
-
January 18, 2025 to October 4th, 2025
-
May 28, 2025, 5:30 p.m. - 7:30 p.m.
-
June 2, 2025, 1 p.m. - 2:30 p.m.
-
June 2, 2025, 1 p.m. - 2 p.m.
