Cos Lettuce Cos lettuce is sometimes referred to as Romaine lettuce and is a variety of lettuce that grows tall long shape with a very sturdy spines running down their spine. What is unique about cos lettuce is that it is tolerant to heat.
Growing Romaine lettuce from the leftover stumps. Why have I never thought of this? I know you can do this with green onions and avocado pits. To think of all the romaine lettuce stumps I've just tossed away!