The harvest season is soon over and delivery schedules are merciless. Therefore it is essential for the nurseryman that the tree spade works fast and reliably. It must be of compact design and light weight. The root ball shape should match the natural growth pattern of roots, and the blades should render a neat cut. It has now almost been 40 years since Dieter Opitz, managing director of Optimal-Vertrieb Opitz, began to develop his first tree spade. He knew exactly what mattered, because, for years before that, he had lifted trees the hard way: digging manually.