ageratum
Who can resist the soft, powder puff flowers of this unique plant? One of the few plants with true blue flowers, Ageratum also comes in shades of pink, white, and lavender. Neat, compact mounds will reliably bloom from late spring thru fall, and is one of the more dependable flowering annuals. They grow best in full sun, with some light shade in the hot afternoons. Try mixing blue Ageratum with the silvery leaves of Dusty Miller, Trilogy White Petunias, and a deep blue- colored Lobelia for a stunning display!
