Acer palmatum 'Trompenburg' The Acer palmatum 'Trompenburg' is a stunning Japanese maple cultivar that is highly prized for its vibrant foliage. The leaves of this tree emerge in the spring as a bright red-purple color, maturing to a deep purple-red for the summer months. The 'Trompenburg' typically grows to be 15-20 feet tall and wide, with an upright habit that makes it perfect for use as a focal point or in a mixed border. This maple prefers partial shade to full sun and well-drained soil that is slightly acidic. In the fall, the leaves turn a bright orange-red color, providing a final burst of color before winter sets in. With its striking foliage and easy-to-grow nature, the Acer palmatum 'Trompenburg' is an excellent choice for any garden or landscape in need of a colorful and eye-catching tree.