Starter plant from this hardy, easy-to-grow hybrid L ilium Red Alert. It was derived from crosses between L. longiflorum and the more familiar Asiatics. It has large flowers and a light sweet scent. It flowers in early summer and these lilies have extra strong stems and very good bud counts..If you have room for only one lily in your garden, make it a Red Alert. It grows 3 to 4 feet tall in Late June / Early July Flowering.These new hybrids show stronger stems, larger blooms and are available in very interesting new colors—Zones 3 to 8.