Does Flax Lily Multiply?

Does Flax Lily Multiply? Dianella spreads by underground rhizomes, and is particularly encouraged to proliferate in full sun. Plant it in part shade or deep shade (or in a container) to control its growth. Do flax lilies spread? Growing Flax Lilies Flax lilies produce long, straplike foliage that gives the plant a grasslike appearance. These