Winter Density Lettuce, Heirloom Seeds

Winter Density Lettuce, Heirloom Seeds — The Compact Frost-Resistant Romaine-Butterhead Cross That Thrives in Any Season

Winter Density (Lactuca sativa) is an early, compact romaine-butterhead cross — dark green leaves with an upright growth habit building a dense, 8–10-inch head that is delectable, holds well at market, and is entirely bolt resistant across all sowing dates. Quick to grow but slow to bolt in summer heat. Suitable for container growing, window boxes, and balcony gardens. Frost resistant and reliable in nearly any season. 54 days.

Why Grow Winter Density?

• Compact 8–10-inch densely packed heads — upright, dark green, and beautiful
• Entirely bolt resistant — suited to all sowing dates, spring through fall
• Frost resistant — extends the harvest season into cold weather
• Quick to grow, slow to bolt in summer heat — reliable across all conditions
• Ideal for containers, window boxes, and balcony gardens
• Holds well at market — excellent shelf life after harvest
• Open-pollinated heirloom — save seed year after year

Growing Notes

Direct sow outdoors in early spring or fall, or start indoors 4–6 weeks before last frost. Sow seeds ⅛ inch deep — lettuce needs light to germinate, so barely cover. Thin to 6 plants per square foot. Excellent bolt and frost resistance — suitable for spring, summer, and fall planting. Water consistently. Harvest outer leaves for cut-and-come-again, or harvest whole heads when firm and dense. 54 days from direct sow.

Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden’s success.