Lettuce was an important crop for Thomas Jefferson, who recorded planting it for nearly sixty years in his Garden Book. He first listed Cos Lettuce in 1794. Also known as Romaine, Cos lettuces produce long, erect heads that are largest at the top and taper towards the roots. Paris White Cos Lettuce is an 18th-century variety that was sold by Philadelphia seedsman Bernard McMahon as early as 1802.
Direct sow this white-seeded variety in early spring to allow it to mature before the heat of summer. Keep well-watered to ensure crisp leaves. Approximately 150 seeds per packet.
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