Oehme, van Sweden & Associates is a professional practice of landscape architecture, established in 1977. The firm is credited with creating the revolutionary New American Garden style. The firm's widely diversified mix of residential and nonresidential clients includes public agencies, institutions, private businesses, and homeowners. Work in progress or completed extends geographically to at least twenty-three states, the District of Columbia, Argentina, Australia, Canada, and Germany. Credits include botanic gardens, zoos, parks, college campuses, retail centers, and corporate headquarters. The firm has received national recognition for its built projects, including 2002 honors, The George Robert White Medal of Honor and the Landscape Design Honor Award by the Perennial Plant Association.