UNH Cooperative Extension Soil Testing Program

Since the early 1900s, UNH and UNH Cooperative Extension have been providing soil analysis and nutrient recommendations to researchers, farmers and homeowners.

Our soil testing procedures are best suited to typical New England soil types and may not be appropriate for samples submitted from other regions of the United States. We recommend that you use a local or regional laboratory whenever possible to obtain the best test results and recommendations. The recommendations that you will receive are based on the latest research conducted in New Hampshire and the northeastern states. Due to our unique soil and climatic conditions, these recommendations may be very different from other areas of the country.

Soil Testing forms can be found here.

Office Hours: Mon - Fri, 8:00-12:00, 1:00-4:30 except on university recognized holidays.

Location: Spaulding Life Science Center, Room G28, 38 Academic Way (formerly College Road) Durham, New Hampshire 03824.

Soil samples can be hand delivered or mailed to the above address in Spaulding Hall.

Click here for written directions or here for a map to our location.

Test result turn around time is from 10 to 14 business days.

Frequently Asked Questions.

Answers to FAQ's and other considerations.

Contact Information: For more information on the soil testing program or help filling out a soil test form please contact Suzanne Hebert at 603-862-3200 or email soil.testing@unh.edu

General Sample Taking Information

Reference materials and other fact sheets can be found on the Cooperative Extension publication page.

Other resources can be found on the UNHCE Family, Home and Garden Education Center webpage.

Have a specific question? Call the Family, Home and Garden Education Center at  

1-877-EXT-GROW (1-877-398-4769) to talk a trained master gardener. Hours are M-F, 9:00am - 2:00pm.