Crimson Sentry Maple

Botanical Name: Acer platanoides ‘Crimson Sentry’

Alternate Name: Crimson Sentry Norway Maple

The Crimson Sentry Maple is a columnar-shaped tree with an upright tidy growth habit that grows up to 25 feet high and 15 feet wide. This Norway Maple has spectacularly deep purple or maroon leaves. It is a great specimen for use in smaller gardens due to its narrow stature, where Acer platanoides ‘Crimson King’ is too large. ‘Crimson Sentry’ was cultivated from ‘Crimson King’ in the 1970’s.

The tiny light yellow blooms emerge before the foliage in early spring, in upright sprays along the branches. The new leaves then unfurl bright red in color, and they mature and deepen to a striking rich, deep maroon-purple, holding its color through the summer. Then Acer ‘Crimson Sentry’ puts on a fall display as its leaves change to bright crimson.

The Crimson Sentry Maple is a great choice for urban settings, both because of its narrow structure and drought and pollution tolerance. This tree’s narrow spread makes it ideal to line pathways or roadways. It is also extremely wind resistant, making it a tough and hardy tree for city settings. This trait, as well as its tolerance for salt spray, also make it a great choice for coastal landscapes.

Acer ‘Crimson Sentry’ is a low maintenance tree and should only be pruned when necessary to remove dead branches or neaten up its columnar form.

Category:

Height: 25 ft.

Width: 15 ft.

Shape: Columnar

Flower Color: Yellow

Flowering time: April-May

Fall Color: Maroon/Bronze-red

Features: Attractive deep red/purple foliage, narrow growing habit

Exposure: Full Sun to Part Shade

Watering: Moderate & Regular

Soil: Moist, well drained soil

Growth Rate: Slow

USDA Zones: 4-9

Uses: Shade tree, foundation tree, focal point tree, vertical accent, smaller gardens, lining driveways, PNW gardens, woodland gardens, wet areas

Similar trees: Acer platanoides ‘Crimson King,’ Fagus sylvatica ‘Dawyck Purple,’ Acer platanoides ‘Royal Red’