Though daffodils fall within the narcissus botanical family, the bulbs' flowers can seem homely once their spring bloom has passed. Do yourself a favor, though, and leave the foliage be. Like all bulbs, daffodils feed off the leaves, so removing the withered bloom too early guarantees a meager crop of flowers next spring. On the other hand, once the leaves yellow, it's a fine time to dig daffodils up and divide new bulbs off the original. Replanted properly, they'll flower just like their parents for seasons to come.