Baby Maple Tree . The black maple is a large, deciduous tree 60 to 80 ft in height with a dense, rounded crown and a straight trunk up to 4 ft in diameter. Bright red, yellow, and orange fall color. Buy Acer palmatum 'Baby Ghost' Japanese Maple Mr Maple │ Buy Japanese from mrmaple.com A bushy, upright japanese maple. If the soil is dry, add water to the entire mulch bed until the soil is damp but not soaked at the bottom of the hole. The first truncatum cultivar, fire dragon offers brilliant red leaves in autumn and grows vigorously.;