The slender, dark green, grass-like foliage of this summer bloomer is topped with flowers for several weeks in mid summer. Rain Lilies are deer-resistant blubs that prefer moist but well-drained soils in full to partial sun. Though they're hardy to zone 7, gardeners living in can treat Rain Lily as an annual, growing it in a container instead of in the ground. Rain Lilies are easy to overwinter by lifting the bulbs and storing them for the winter, or by dragging the pot into a garage just before frost arrives. Also known as fairy lilies, these natives of the New World naturalize easily in the southern US, but they're a delightful mid-summer surprise for gardeners everywhere.