This desirable and long-lasting summer border is fairly easy to replicate and includes spectacular ingredients. Valued for its handsome bottlebrush flowers and graceful arching leaves, Pennisetum villosum (Feathertop) is beautifully combined here with hot and vibrant tangerine Dahlias, leaping up out of a froth of cool blue Ageratum houstonianum (Floss Flower) and gloriously teaming up with the vertical spikes of Agastache (Giant Hyssop). Edging this striking planting are the fragrant mounds of white blossoms of Lobularia maritima (Sweet Alyssum).