The ‘Garnet’ maple typically grows to a height of 10 to 15 feet (3 to 4.6 meters) with a spread of about 8 to 12 feet (2.4 to 3.6 meters). Its upright and slightly cascading form creates a visually pleasing silhouette, making it an excellent choice for focal points or as a specimen tree.

The outstanding feature of Acer ‘Garnet’ is its stunning foliage. The leaves are deeply lobed and have a delicate and lacy appearance. During spring and summer, the leaves emerge in a rich burgundy colour, similar to the deep red hues of garnet gemstones. As autumn arrives, the foliage transitions to vibrant shades of orange and red, offering a breathtaking display of fall colours.