Cornell Cooperative Extension

Jefferson County
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In addition to what you'll find here on our website, we offer free or low-cost workshops on topics that range from how to start an organic garden to canning and parenting to youth development. Explore our links, check out our upcoming events, then give us a call to learn more! 

Neighbors You Know, Knowledge You Trust 

master gardener training

Master Gardener Training

Are you a Jefferson or Lewis County resident interested in becoming a master gardener? Now is your chance!

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Taste NY Store

Taste NY

The Taste NY Market highlights agricultural and value added products from the North Country and around New York State.

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Cooking Food Demo

Free Healthy Cooking Class

Join Healthy Families and our Local Foods Educator for a free cooking class featuring personal pizzas and dessert pizzas!

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grazing

Advanced Hoof Health Program

Designed for hoof trimmers and dairy managers, this program covers strategic trimming, lameness technology, and housing design with industry experts!

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Cornfield

Tri County Crop Congress

Join us for a presentation on crop, nutrient, and pest management with guest speakers. Offers 2.0 NYS DEC credits and 3.5 CCA credits pending approval.

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dairy cows

Jefferson County 4-H Dairy Bowl

Meet new friends and test your knowledge of all things dairy!

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Last updated December 17, 2025

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Cornell Cooperative Extension of Jefferson County