In addition to single trunks, we grow 'Atropurpureum' in clump form, just like the Acer palmatum, providing a thicker, densely branched tree. Depending on culture and exposure, summer foliage will range from primarily red to hues of green, and will finish the season with a burnt umber red. 'Atropurpureum' works great where a group of three is needed to anchor a corner landscape or screen a view. Will likely spread to 25 feet wide at maturity, and 20-25 feet tall. Zone 5-8