Crimson Sentry maple (Acer platanoides 'Crimson Sentry') is a deciduous tree that is commonly used as a specimen or accent tree in landscapes. It is a cultivar of the Norway maple and can grow up to 25 to 30 feet (7.5 to 9 meters) tall and 10 to 15 feet (3 to 4.5 meters) wide.
The tree has a narrow, upright habit with a compact and dense canopy. It produces small, yellow-green flowers in early spring that are not showy. Its foliage is a deep reddish-purple color throughout the growing season, which is where it gets its name. The Crimson Sentry maple has a smooth gray bark when young, which eventually develops some furrows and fissures as the tree matures.
Crimson Sentry maple is known for its striking foliage color and its ability to fit into narrow spaces in the landscape. It is also relatively tolerant of urban conditions, such as air pollution and compacted soil.Â