1-2'H Perennials
These perennials usually remain in the 1 to 2 feet high range under most conditions. They are still low enough for the front of perennial border, garden, and landscape and some of the rhizomatous species will make low to medium height groundcovers. Their tidy habits also lend them to use as fillers and spillers for container specimens and in combinations for small to medium sized containers. Growing conditons and how well a plant is established may affect it's ultimate size.