Tree Abies balsamea var. phanerolepis [Canaan Fir] The Canaan Fir is more tolerant of different environmental conditions than many other firs. It can tolerate wetter soils, and because of its later bud break, is more resistant to damage caused by late spring frost. Can be affected by spruce budworms, wooly adelgid, and several canker diseases, as well as deer. This species transplants well.
Tree Abies concolor [White Fir] Similar to Picea pungens f. glauca in color and general form, but less positive, and so easier to use in a variety of situations. Better adapted to hot, dry summers than most other firs.
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 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 × '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.
Tree Acer miyabei [Miyabe Maple] Attractive bark is grayish with long, vertical scales and fissures in maturity. Some difficulty in both vegetative and seed propagation.
Tree Acer miyabei 'Morton' [sold as State Streetâ„¢] [State Street Miyabe Maple] This selection has handsome corky bark with an oval form and attractive ascending branches. Acer miyabei 'Morton' is sometimes known as an alternative to Acer campestre, as it is more vigorous and cold hardy.
Tree Indiana Native Acer negundo [Boxelder] Invasive. Very rough in its appearance due to pinnately compound, coarsely serrate leaves paired with a multi-stemmed, irregular habit. Leaves of young specimens may commonly be mistaken for poison ivy. This tree has limited ornamental value in the landscape and is short lived but also extremely tolerant of site conditions. Wherever this species is grown, expect to encounter boxelder bugs (Leptocoris trivittatus). This common pest feeds on the sap of boxelders and maples and is…