Plant Profile: Acer rubrum

The red maple is a native deciduous tree that can reach heights of up to 120 feet and have a trunk diameter of 6 feet, though it typically grows between 40 to 70 feet tall and 1.5 to 2.5 feet wide. This attractive shade tree features a rounded crown and branches that ascend, spreading 30 to 50 feet. In its natural habitat, it thrives in upland deciduous forests, often found at elevations of up to 1500 meters. It is relatively easy to cultivate in average to moist, well-drained soil, preferring full sun to partial shade. While it can tolerate a variety of soil types, including clay, it thrives best in slightly acidic, moist conditions and is notably cold hardy. Its growth rate surpasses that of Norway and sugar maples, although it is slower than that of silver maples.

In autumn, the red maple is among the first trees to display vibrant colors. Its leaves are arranged oppositely, featuring three to five palmate lobes with serrated edges on long red stems. Compared to other maple species, its leaves are somewhat smaller, with a distinctive rough, saw-like margin. If the edges of the leaves appear serrated, it is likely a red maple. The bark of younger trees is smooth and silvery-gray, transitioning to a scaly, darker texture as the tree matures. Clusters of small red flowers bloom in late winter, making it one of the earliest flowering trees in spring. During this season, light brown or red-winged samaras develop, and in the fall, the leaves turn a striking orange-red, although the intensity of this color can vary among individual trees. It is straightforward to plant and establish, whether as a small bare-root specimen or one that is balled and burlapped.

This tree is an excellent option for a soft maple, making it ideal for lawns, parks, or streetscapes. It exhibits some tolerance to air pollution. The light, cream-colored wood, commercially known as soft maple, is dense, finely grained, and somewhat weak, commonly used for pulpwood and in the production of furniture and wooden items.

In terms of pests and diseases, red maples can experience manganese chlorosis in alkaline soils. Keep an eye out for aphids, leafhoppers, borers, scale insects, and caterpillars. Additionally, verticillium wilt can severely affect the vascular system and may be fatal. Other potential issues include cankers, fungal leaf spots, and root rot. Wind and ice can also cause branch breakage. The tree has a shallow, flattened root system that can disrupt nearby sidewalks or driveways if planted too close.