Summer Camp!!

It's that time of year again! What do you want to do this summer? Let us be a part of it. With loads of fun and educational opportunities for everyone.

Read more



Cornell Cooperative Extension of Suffolk County has closed their offices at 423 Griffing Avenue temporarily.

During our temporary relocation, you can reach our Administrative offices at 631-853-6159.

ALL other offices are still open and operating as usual.  Find our other locations here.

Our staff can still assist you.  Find contact information on our staff listing page.

Horticulture Diagnostic Laboratory

Samples for the The Griffing Ave. Home Horticulture Diagnostic Lab in Riverhead can be brought to the West End location at Bayard Cutting Arboretum, Great River, NY (Tuesday through Friday, 10:00am—4:00pm), or samples can be left in the drop box located at the back door of the Griffing Avenue Building. If using the drop box, please fill out the paperwork and include a check or indicate that you wish to pay be credit card (we will call you). Samples will be regularly picked up and transported to the lab.

The Horticulture Diagnostic Help Phone Line can be reached at
631-581-4223 (Tuesday through Friday 9:00am—12:00pm).

Thank you for your understanding and patience.

Bunny tail close!

Nuisance Wildlife Management

This workshop will inform you of design and landscape management tactics to keep the critters at bay and your plants thriving and blooming.

Read more


The Children's Garden

We can't wait for the next exciting season at the Children's Garden held at the Suffolk County Farm & Education Center in Yaphank. Every year brings more and more fun!

Read more


Parenting Skills Workshop Series

Join us for an eight session parent education program and learn new, positive skills that will replace ineffective behaviors and parenting practices.

Read more


Better Choices Better Health

Discover new, practical ways to live better & healthier. Learn the tools to manage and take control of your health.

Read more

Jmg growing logo 2tall

Junior Master Gardener

For the first time, we will offer a children’s gardening program for your older children, ages 12-16. Join us this summer for our Junior Master Gardener “Wildlife Gardener” Program!

Read more

Garden party 2016 clip

Midsummer Eve Garden Party

This fundraiser party celebrates the renaissance of the Children’s Garden and will help it grow to meet the educational needs of more children in Suffolk County who want to learn all about gardening.

Read more

Last updated June 14, 2018