Dan Hinkley, horticulture expert, describes landscape design principles for creating more visually satisfying gardens. He outlines three important design concepts: the use of differing textural qualities of landscape subjects (accentuation), creating depth in plantings by the use of the vertical element (exclamation), and employing repetitive elements for continuity and cohesiveness (punctuation). Careful design planning, balancing form and textural contrast can provide instant gratification and transform nature into art.