Purple fountain grass—named for the arcing spikes of purplish flowers that gracefully spray out of its mass of long, slender, burgundy-colored leaves—is not a very cold-hardy plant, but it is well worth growing in the north—even if you can enjoy it for only two seasons out of the year. It is more expensive than other plants grown as annuals but this plant will delight you with a showy, multi-faceted display. A clump-forming ornamental grass variety, it is a tropical plant that both deer-resistant ornamental grass, and non-invasive.