This is the ultimate perennial for both experienced perennial border designers as well as beginning gardeners. The blue-purple (RHS 82A), large marble-sized, branched flower clusters are borne all summer on 30" tall stalks above the narrow see-through foliage. Verbena bonariensis (Latin for "Buenos Aires") is great in the garden or in flower arrangements...a hummingbird favorite. In good soils, you will find a few seedlings scattered around the garden making their own combinations!