Dr. John Creech, former director of the US National Arboretum, discovered this little beauty in the Siberian Academ Gorodok Gardens in 1971. The small, scalloped green leaves of this weed-smothering groundcover are topped with pink flowers in spring through summer. This durable semi-evergreen is very hardy, vigorous and gorgeous, weaving in and out of stepping stones or along a garden path. It is also ideal for green roofs, rock gardens and containers.