Clusters of white flowers are blushed lavender at the tips of the stems, featuring deep purple and silver stems and leaves. This 'nativar'—a cultivar of a native species—is perfectly at home in our Chicago area soils and climate. Simply water enough to get the plants established in a sunny location. They attract a number of pollinator insects, including bumblebees and, over time, will produce clumps of up to a dozen flowering stems.