Asiatic lilies are hardy lily hybrids that bloom in late spring to early summer in various colors. The orange Asiatics include "Orange Pixie," 'Orange Electric,' and 'Enchantment,' among others. Caring for orange Asiatic lilies and coaxing them into bloom is the same as for other Asiatic hybrids. Plant the orange Asiatic lily bulbs in mid-September through mid-October or anytime in the spring, after the danger of frost has passed.
Choose a planting site for the orange Asiatic lily. The site should receive morning sun and afternoon shade.
Loosen the soil at the planting site to a depth of 12 inches. Crush large clumps of soil and remove any rocks or other debris.
Add a 3-inch layer of compost or peat moss to the soil and mix it in to a depth of 12 inches. Level the soil with a rake.
Dig planting holes for the orange Asiatic lily bulbs, 8 to 12 inches apart. The holes should be 2 to 4 inches deep for small bulbs and 4 to 6 inches deep for large ones. Throw a handful of bone meal into each hole, place the bulb in the hole and cover with soil.
Water the orange Asiatic bulbs weekly, to a depth of 6 inches. Discontinue watering prior to the first frost.
Cover the fall-planted bulb garden with 4 to 6 inches of mulch. Wait until November to apply the mulch and remove it in the spring after all danger of frost has passed.
Fertilize the orange Asiatic lilies in the spring with a 5--10--10 formula, at the rate suggested on the package. Water after fertilizing.
Water the orange Asiatic lily early in the day during the growing season, and don't allow moisture to remain on the foliage. A soaker hose placed on the soil around the plants is ideal. Water to keep the soil just slightly moist. After flowering has begun, decrease irrigation frequency and provide water only during the hottest days of summer.