Stowell's Evergreen is the heirloom sweet corn that defined American summer tables for over 150 years. This open-pollinated variety produces full-sized ears packed with tender, milky kernels that stay sweet longer than most varieties, resisting the quick conversion to starch that plagues other sweet corns. Plants reach full maturity in 80 to 100 days, thriving in full sun with moderate water and moderate spacing. It's a variety that rewards daily harvest checks during peak season, especially in hot weather, with flavor that deepens when kernels are harvested at precisely the right moment.
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The kernels remain tender and sweet well into the harvest window, a trait that earned this variety its 'Evergreen' name and made it a market garden staple. Unlike supersweet varieties, Stowell's needs quick cooling and storage right after picking to preserve its quality, but this small extra effort pays off with authentic corn flavor that feels nothing like the watery supermarket ears most people know. The variety thrives when direct seeded into deep furrows with proper fertilizer and thinned at the right seedling stage, and gardeners who monitor ears closely during the heat of summer, harvesting when silks brown and kernels feel full and milky, will understand why this corn was worth saving.
Stowell's Evergreen is the classic sweet corn for eating fresh off the cob, boiled or roasted, though its tender kernels also work beautifully in corn salads, succotash, and cream-based soups. Home gardeners grow it specifically for the harvest-to-table experience, where the race between picking and cooking becomes part of the season's rhythm.
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Start seeds indoors 2 to 3 weeks before your transplant date. Avoid letting seedlings become root bound, and handle roots very gently when planting out to prevent damage.
Transplant outdoors at the date calculated from your direct seed timing. Handle roots carefully to avoid damage during the planting process.
Direct sow seeds into furrows 6 to 8 inches deep. Spread 3 to 5 pounds of complete fertilizer per 100 square feet, backfill the furrow, sow seeds, and cover with soil or sifted compost.
Check ears frequently during the harvest window, ideally daily if temperatures exceed 85°F. Harvest when kernels feel full and milky to the touch and the ear tip is blunt or rounded. Drying and browning of the ear silks also signals maturity. Remove ears by pulling down firmly and twisting them free from the stalk. Cool ears as quickly as possible and store immediately at 36°F, since Stowell's Evergreen (like most sweet corn except supersweet types) converts to starch quickly.
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