Green Oakleaf lettuce is a bushy looking lettuce with round scalloped leaves. Green Oakleaf has a mild flavour. Storage: Green Oakleaf lettuce can be stored in the crisper section of the fridge for up to 4 days. To keep the lettuce fresh for up to 10 days the base root section of the lettuce should be immersed in water and placed in the fridge. Nutrition: Green Oakleaf lettuce is rich in Vitamins A, B, C, D and E, as well as being packed with minerals! All of this means that this lettuce is great for your eyesight, nervous system, general wellbeing and skin; and a great low fat snack. Ideal Use: Green Oakleaf lettuce is a great lettuce in salads due to its mild flavour and being jam packed with vitamins and minerals.