CARROTS The leaves of carrot are actually edible and you can regrow them by putting carrot tops in water in a well-lit room or a window sill. This is a clever way to turn your carrot scraps into salad. Tutorial via Fidgety Fingers.
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.
You can regrow garlic sprouts from a single garlic clove. Just place the garlic cloves in a small cup with a little water and let it grow. The garlic sprouts have gentle flavor than garlic and can be added to pasta, salads and other dishes.
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!