I never grew lima beans before; so I don't know what is considered a large lima bean leaf, but these leaves seem very large on this lima bean plant. The seeds were given to me in trade by another grower. He said he received the lima beans from another grower in Michigan. The person in Michigan had been selecting for many years for very large lima beans. I don't have any lima beans yet, but if the leaves are any indication, these may indeed be very large.