Bort's Broom is a very showy green Acer circinatum broom that tolerates the sun real well. It prefers mooring sun afternoon shade, but can take some hot sun - as long as its not all day. In the sun Bort's Broom green leaves bronze out to a very attractive cherry red. Borts Broom is a dwarf maple that tend to grow in a bush fashion with branching mostly basal. Like all brooms, this arose as a sport or mutation on a wild circinatum. Growth is dense and rather fast when young. Graft bulge can be present in some plants. Borts broom will grow to about 4 feet.