While lettuce is a mainstay in diets year-round, it is actually a cool-season crop and bolts, or goes to seed, in hot weather. However, some lettuce varieties have been bred by gardeners over time to tolerate warmer temperatures and resist bolting early in the season. Plant these heat-tolerant lettuce varieties to extend your salad harvests.
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Seed Savers Exchange marks 50 years in 2025, and there’s a lot to celebrate—including 16 new seed varieties in our special-edition catalog (seven exclusively from the SSE collection).
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In 1937, Nestor and Amber Keene acquired a very special Bibb lettuce from Nestor’s Aunt Mae Smith of Millheim, Pennsylvania, who had, in turn, received it from “local folks named Zimmerman who had grown it for decades in Brush Valley.”
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The latest Seed Savers Exchange catalog includes 20 new seed varieties and two new seed collections for 2024, and they promise to be popular picks of gardeners everywhere!
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Lettuce is an ideal crop for beginner growers and seed savers alike. Gardeners can choose looseleaf varieties that do not form heads or grow iceberg lettuces that form a head of tightly overlapping leaves.
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Crader Family Lettuce by Mary Katherine Crader Daniels, submitted for the 2022 Seed Savers Exchange Conference, “I hope you will enjoy this lettuce recipe as much as we have over the years,” says Mary Katherine. “It’s an old German recipe—my mother had a special way of wilting the lettuce.”
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The 2018 community science programs, consisting of 80 Seed Savers Exchange members, helped us take another giant step forward in preserving our collection.
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The year 2017 proved a success for Seed Savers Exchange’s new Community Science programs. Myriad SSE members answered the call to participate in one (or both) of the programs—ADAPT and RENEW.
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