Tree Acer buergerianum [Trident Maple] Needs training to develop single central leader (if that is desired). Popular street tree in Japan. Cold hardiness varies in seed produced stock. In some cases, fruit set is so high as to deplete foliage. Flaking bicolor bark in gray-brown and orange.
Tree Acer campestre [Hedge Maple] Transplants easily. Pruning may be needed to limb up branches to create a shade or patio tree. Tolerates severe pruning and soil compaction. Can be pruned to become a giant hedge.
Tree Acer × freemanii [Freeman Maple] Stemming from its Silver Maple parentage, this hybrid is an extremely fast grower and tolerant plant, able to withstand drought conditions and heavy soils, which the Red Maple, its other parent, cannot. However, the Freeman Maple has more of the strength in wood of the Red Maple.
Tree Acer glabrum [Rocky Mountain Maple] This species can withstand moderate drought and coarser soils better than other maples, but prefers moist soils that are sligthly acidic.
Tree Acer grandidentatum [Bigtooth Maple] A densely branched tree with shiny green lobulate leaves on top and silvery beneath. It has a bright fall color of red, yellow, and orange as well as yellow corymbose flowers in spring. The samaras resemble moth wings.
Tree Acer grandidentatum 'Schmidt' [sold as Rocky Mountain Glow®] [Rocky Mountain Glow Maple] Acer grandidentatum is closely related to Acer saccharum (the Sugar Maple), which it is often compared to. This variant stands out due to its more upright form, smaller size, and its brilliant orange-yellow and orange-red fall foliage.
Tree Acer griseum [Paperbark Maple] Slow growth (6-12" per year) is compensated for by longevity and freedom from maintenance. The cinnamon-brown, curly bark is outstanding. Habit is open enough to display bark interest year-round.
Tree Acer × 'Hipzam' [sold as Highland Park®] [Highland Park Bigtooth Maple] Acer grandidentatum is closely related to Acer saccharum (the Sugar Maple), which it is often compared to. 'Hipazam', often sold under the name of Highland Park, is an upright variant with an oval crown and lustrous, deep green leathery leaves that turn an attractive orange-red in autumn.
