With their black-spotted orange petals, these lilies mimic the majesty and elegance of a wild tiger. Be on the lookout for these good-looking blooms during your afternoon yard safari—no binoculars necessary. Growing up to 4 feet tall with flowers spreading 5 to 6 inches across, you'll have plenty of exotic beauty in your yard. Once mature, you'll get 20 to 25 blossoms per stem! When to Plant Lily Bulbs Plant your lilies in the spring when the soil is workable but not muddy. Plant your lilies in the fall a month before the first killing frost when the soil is still workable. Where to Plant Lily Bulbs Before you plant your lily bulbs, choose a sunny spot. Well-drained soil is a must for lilies to do their best. Lilies do best in full sun but they can tolerate some shade. How to Plant Lily Bulbs Lilies look very nice when planted in groups of three to five bulbs. Space them about 12 inches apart so they have room to grow. Small lily bulb varieties should be planted two to four inches deep, and larger lily bulb varieties should be planted six inches deep. Space each group about three to four feet apart so they can grow to their full mature size. The soil should remain moist. Watering a substantial amount once a week is usually more desirable than a few light watering during the week. During the hot months of course watch your soil and do not let it dry out. Water as needed.