Gardening: Lilies a colourful addition to a prairie garden

Most of the lilies grown in prairie gardens are hybrids of Asiatic species. Their ancestors originated in Asia in a climate very similar to ours. They can vary in height from 10 inches to four feet and come in a generous range of colours, blooming variously from June to late August.
The Longiflorum-Asiatic (LA) hybrids have similar characteristics to the Asiatics, but are sturdier, bloom more profusely, and are altogether showier.  They can be more prone to colour-breaking viruses especiall