Cornell Cooperative Extension

Suffolk County
gardening stuff

Getting ready to garden.

cold frame

Learn about using cold frames in your home gardening.

greenbeans

Support your local growers.

little girl with sunflower

Children love being in the garden!

Gardening

Cornell Cooperative Extension offers gardening support. Homeowners can bring soil and plant samples to our Diagnostic Lab in Riverhead and at Bayard Cutting Arboretum. Questions can be answered on the Horticulture Hotline (631) 727-4126, Mondays-Fridays, 9am-noon.

Check the Gardening Events tab in the right margin for  weekly gardening programs.  Joy of Gardening is a 10 week online course offered September-November. Master Gardener Training is a 16 week hybrid course. Spring Gardening School provides learning opportunities for new and experienced gardeners alike.

master gardener

Master Gardener Training

Want to learn about native and pollinator plants, how to prune and propagate, and other good practices for your garden? Join the Master Gardeners of Suffolk County.

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River and Roots

Community Gardens

There are many community gardens throughout Suffolk County. This list is just a few of them.

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harvesting carrots and cabbage

Time to plant a Victory Garden!

CCE's Community Horticulture is offering ONLINE gardening programming on this and many other gardening topics.

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gardening stuff

Master Gardener Volunteer Training Program

Anyone with a desire to learn more about gardening and an interest in contributing to the community on a voluntary basis is a candidate for the Suffolk County Master Gardener Volunteer Program.

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Contact

Roxanne Zimmer
Community Horticulture Specialist
rz378@cornell.edu
631-727-7850 x 215

Last updated March 28, 2023

Gardening

Plant Hardiness Zone Map

Plant Hardiness Zone Map

The USDA Plant Hardiness Zone Map is the standard by which gardeners can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones.

http://planthardiness.ars.usda.gov/PHZMWeb/

Gardening Links

Cornell Gardening Resources
http://www.gardening.cornell.edu/

Gardening Pamphlets

Home Composting
Composting is the most practical and convenient way to handle your yard wastes. Read more...

Waterwise Gardening

The waterwise gardening tips inside this brochure are ways to preserve the quality of our water resources. Read more...

Garden Programs

Events

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The JOY of GARDENING

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The Joy of Gardening

Do you want to enhance your gardening skills? What can you learn about native and pollinator plants? How to select the right plant for the right place?

Learn more about flowers, foliage, garden design and other gardening topics in this 10 week course offered from September through November. The online course is self-paced with lectures available on your schedule. Suggested field trips and garden makeovers.

Course fee: $375

Enrollment is open for the 2023 offering.

Register here.

Cornell botanic gardens 2012 1

Visit Cornell University's The Lost Ladybug Project online and learn how your photos can help scientists keep track of both new and native Ladybug species in your neighborhood.