This is heirloom lettuce from the Siberian region of Russia and is very cold hardy. Plants produce oakleaf-style leaves that are green with a bronze tint. This lettuce will produce late into winter and will tolerate heat more than most varieties due to its low profile to the soil. Oakleaf-shaped leaves will not overheat in the sun. Rich in vitamins E, K, A, C, and Potassium, fiber, as well as iron.