An Asiatic lily is a lily in the genus Lilium. Plants in this genus are sometimes referred to as "true lilies," reflecting the fact that they are botanically classified as lilies, rather than just being called "lilies" by people who are not knowledgeable about horticulture. True lilies are bulbs, and they have fleshy stems, blade-like leaves, and trumpet shaped flowers. The Asiatic lily is among the easiest to grow. Asiatic lilies are hybridized lilies which are famous for their vigor.