#1 reason to plant them is they attract butterflies 🧈 Top Reasons to Plant Lilies Their blooms are wonderfully-fragrant. ... They make great cut flowers. ... Lilies are fabulously-easy to grow. ... They take up little ground space and come back year after year. .. Can survive in damp locations Lily bulbs can do well in areas with mulch and grass, and in damp locations. Can multiply over time Lily bulbs don't mind being crowded and will often multiply, growing into large clumps with many stems. Look nice in groups Lilies look great when planted in groups of three to five bulbs, spaced about 12 inches apart.