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Graphic for the 10th annual Sammamish Valley Seed Swap at 21 Acres.
Sammamish Valley 10th Annual Seed Swap

February 13, 2026 - Come to the Sammamish Valley DIY seed swap during the month of March at 21 Acres and take your place in a movement to prevent seed species extinction by saving, growing, and sharing seeds!

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Browse the Sustainability Library
Browse our Sustainability Library (Wed-Sat)

November 15, 2025 - The 21 Acres Sustainability Library offers more than 1000 books, DVD’s and publications covering topics like gardening, cooking, climate action

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Green building features on display in the 21 Acres Great Hall include LED lighting, clerestory windows and high performance translucent skylights.
21 Acres Green Building Tour: Climate Adaptation and Building Resilience

March 14, 2025 - This tour will highlight the features of the 21 Acre LEED Platinum Green Building that support adapting to Climate Change and will demonstrate how green building techniques support building resilience.

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Kids and staff planting seeds at 21 Acres.
A Seedy Affair

February 22, 2025 - You too can have a “Seedy Affair” in the Sammamish Valley! In this case, it’s a celebration of all things seeds on the 21 Acres Farm Market patio.

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A hand holding pea seeds and trays holding soil and newly planted seeds.
“All About Seeds for Farming & Gardening” free presentation

February 8, 2025 - Come to the Sammamish Valley DIY seed swap March 5th through the April 30th at 21 Acres and take your place in a movement to prevent seed species extinction by saving, growing, and sharing seeds!

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Gardeners look through the bins at the Sammamish Valley Alliance annual Seed Swap at 21 Acres.
Sammamish Valley 9th Annual Seed Swap, March-April

February 24, 2024 - Come to the Sammamish Valley DIY seed swap March 4th through the April 30th at 21 Acres and take your place in a movement to prevent seed species extinction by saving, growing, and sharing seeds!

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Browse the Sustainability Library
Browse our Sustainability Library (Wed-Sat)

December 8, 2023 - The 21 Acres Sustainability Library contains more than 1000 books, DVD’s and publications covering topics like gardening, cooking, climate action

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Planting Seedlings at 21 Acres
Sammamish Valley Alliance 7th Annual Seed Swap

February 19, 2023 - March 4th through the 25th, take your place in a movement to prevent seed species extinction by saving, growing, and sharing seeds! Come to the DIY seed swap with Sammamish Valley Alliance and 21 Acres.

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Browse the Sustainability Library
Browse our Sustainability Library (Wed-Sat)

February 3, 2023 - The 21 Acres Sustainability Library contains more than 1000 books, DVD’s and publications covering topics like gardening, cooking, climate action

continue reading