Horticulturists work in crop production; plant propagation; plant breeding; genetic engineering; plant physiology; plant biochemistry; landscape design, installation, construction, and maintenance; and storage, processing, and transit (of fruits, berries, nuts, vegetables, flowers, trees, shrubs, and turf). They improve crop yield, quality, nutritional value, and resistance to insects, diseases, and environmental stresses. They make plants more adaptable to different climates and soils and better fit for food uses or processes. And they grow and improve plants used for medicines or spices.Horticulturists can work in industry, government, or educational institutions.