Acer platanoides “Crimson Sentry”

A narrowly upright tree, ultimately 12m high and 5m across, with large, five-lobed, scallop-edged, very dark red-purple leaves. Clusters of small, yellow flowers tinged dark red in spring are followed by dark red and green, winged fruit in autumn

Ultimate height 8–12 metres in 10-20 years
Ultimate spread 4–8 metres
Prefers full sun/partial shade, any aspect in an exposed or sheltered location
Very hardy