Winter Seed Sowing

Saturday, March 14, 2026

Winter is the time to start seeding, but NOT indoors. Learn how to successfully start seeds OUTSIDE in the winter. No greenhouse needed. Winter sowing techniques outside are easier than the windowsill or with light lamps in the basement. Come for this hands on workshop to begin your vegetables...

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Rain Gardens

Wednesday, March 18, 2026

Do you want a garden that looks good year-round, requires little maintenance, and helps prevent water pollution? Rain gardens are shallow depressions designed to soak up water and support trees, shrubs, and flowers that tolerate both wet and dry conditions. Learn which plants perform best in ...

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Spring Gardening School

Saturday, March 28, 2026

Spring Gardening SchoolSaturday, March 28  Registration for this event closes on March 20CCE Education Center, 423 Griffing Avenue, RiverheadA full day of 16 gardening programs to select, including 8 new sessions, with our talented Master Gardeners. Breakfast and lunch have returne...

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Native Plant Sale Pre-Order

Tuesday, March 10, 2026

Here are 20 handsome native plants available below retail prices. Orders must be placed by APRIL 1st for Pickup on Saturday, May 2 at the Suffolk County Farm during the annual Master Gardener Plant Sale from 8am to 1pm.Any questions? Contact Master Gardener Linda Carlson lindalcarlson@gmail.com

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Rain Gardens

Thursday, April 2, 2026

Do you want a garden that looks good year-round, requires little maintenance, and helps prevent water pollution? Rain gardens are shallow depressions designed to soak up water and support trees, shrubs, and flowers that tolerate both wet and dry conditions. Learn which plants perform best in ...

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Bee Kind to Bees

Tuesday, April 7, 2026

Bees are essential pollinators that maintain biodiversity and food security. Planting bee-friendly flowers and avoiding pesticides will enable honey bees to produce their honey.

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Curb Appeal

Wednesday, April 15, 2026

What makes a home inviting and visually appealing from the street?Explore ten key features that enhance your landscape.

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MAYFEST

Saturday, May 2, 2026

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MASTER GARDENER PLANT SALE

Saturday, May 2, 2026

Hundreds of perennials, flowering annuals, herbs, vegetables and shrubs from local vendors. Great prices! Cash, check or credit cards accepted.

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Pollinator Pathways

Thursday, May 14, 2026

Butterflies, birds and the other pollinators need host plants for nectar, food and lodging. By introducing three seasons of key pollinator plants into your garden, you can create a pollinator-friendly habitat in your front and back yard. Discover the best planting arrangements as well the many...

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Propagating Plants

Saturday, May 16, 2026

Want more attractive houseplants in your home and perennials in the garden? Discover basic propagation techniques for multiplying your plants through stem and leaf cuttings. Division by root separation will also be discussed. When offered in person, this workshop will include plant material, ...

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​Dahlias

Monday, May 18, 2026

Dahlias provide stunning color, a wonderful supply of cut flowers and architectural interest. Learn how these deer-resistant tubers can grow in your garden. Tips on preparation, planting and storage will be covered.

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Green Thumbs Summer Camp

Wednesday, July 8, 2026

Join campers at GREEN THUMBS Summer Camp in 2026. Cultivate a connection to nature and plants in 7 weeks of discovery. Wednesdays only, July 8 - August 19, 10am-noon. Play in the soil by growing seeds and planting vegetables in square foot beds and tepee gardens. Hunt for butterfli...

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