Cornell Cooperative Extension

Seneca County
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We offer gardening classes and tours all year long!

Gardening

Cornell Cooperative Extension of Seneca County is your source for information on soils, site improvement, plant selection, proper plant care, eco-friendly practices, integrated pest management, composting and so much more! We offer free or low-cost gardening classes and tours all year long, and opportunities to share your love of gardening as a volunteer! Call us or come by today!

Master Gardener logo, 800x400 in yellow & green

Master Gardeners

Master Gardeners belong to a national corps of trained volunteers who share gardening information in their communities through the local Cooperative Extension office.

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plant emerging from a seed

​Indoor Vegetable Seed Starting

Starting seeds indoors provides an opportunity to get a head start on a short outdoor growing season.

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Exotic Bush Honeysuckles

Invasive Plants

Many plants that are now considered invasive started out as popular garden ornamentals. Learn more about what plants to avoid in your garden.

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Leaf lesions on tomato due to late blight

Plant Diseases

Prevention and early identification are crucial to minimizing damage from disease in your garden and landscape. Check out these resources that can help you stay ahead of disease in your garden.

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Houseplant

Houseplants

Growing plants indoors can be difficult, but here are some links that may be helpful in making you successful at growing plants indoors:

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bee

Pollinators

A landscape made up simply of mowed lawn and a couple of trees won't provide the food and shelter that native bees and butterflies need to thrive and reproduce.

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Last updated June 3, 2025

Gardening

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Planting in a High Tunnel

Demonstrated by CCE Master Gardeners Ann and Don Cobb, this video demonstrates planting in a high tunnel, but the method is universal. They use this method of planting seeds in soil all year for their entire garden:

  1. work the ground
  2. open a trench
  3. water the bottom of the trench well
  4. plant the seed
  5. cover
  6. pat down

This method encourages rapid germination, so if the seed doesn't emerge, the seed is probably dead, a good way to tell if the seed is viable.