Yukon Winter Lettuce is a frost-tolerant loose-leaf variety bred to thrive when most gardens have shut down for the season. Ready to harvest in 50 to 70 days from direct sowing, this cold-hardy cultivar extends your lettuce season well into winter, producing tender leaves that remain mild and sweet even as temperatures drop. Its ability to germinate in cool soil (60-70°F) and tolerate frost makes it a game-changer for gardeners in cold climates or those seeking year-round harvests without a greenhouse.
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This lettuce doesn't surrender to winter like ordinary varieties do. The frost tolerance is the real distinction here, allowing you to keep harvesting fresh leaves long after the first hard freeze. With a compact 1-inch spacing and moderate water needs, it fits efficiently into tight garden spaces while remaining adaptable to the cooler, shorter days of late fall and early winter.
Yukon Winter Lettuce serves as a fresh salad green straight from the garden, even when snow is on the ground. Its tender leaves work beautifully in winter salads, sandwiches, and as a base for cooked greens. Because it tolerates cold so well, it's invaluable for extending the fresh-harvest season when most other leafy greens have bolted or succumbed to frost.
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Start seeds indoors 4 to 6 weeks before your anticipated transplant date. Keep soil temperature at 60-70°F for reliable germination.
Harden off seedlings gradually before moving them outside. Transplant when soil is workable and air temperatures support cool-season growth, typically in late summer or early fall for winter harvest. Space plants 10 to 14 inches apart for loose-leaf types.
Direct sow seeds into prepared soil when temperatures reach 60-70°F. Use row cover to improve germination and prevent soil crusting. Plant every 2 to 3 weeks for continuous harvest through fall and into winter.
Begin harvesting individual outer leaves once they reach usable size, allowing the inner leaves to continue growing and extending your harvest window. You can also cut the entire plant about 1 inch above the soil line for a full harvest, or remove the whole plant if you prefer. Check daily for leaves that are tender and ready, as they will eventually become bitter as the plant begins to bolt. Individual leaf harvesting from loose-leaf types provides the longest season of production before the plant finally exhausts itself.
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