Asiatic lilies grow best in sun to part shade, in loose, well-drained soil; bulbs sitting in soggy soil are prone to rot. You can improve the soil’s composition by working compost, peat moss, or other organic material into the garden bed.
When you plant lilies, place them 12″ to 18″ inches apart and at a planting depth of 4″ to 6″ inches in full or partial sun.
A location receiving morning or late afternoon sun with six hours of sunlight minimum is preferable. Asian lilies like a slightly acidic (6.5 pH.) soil.