Atropurpureum brings striking contrast: leaves are deep green above but rich purple‑red beneath, flashing colour in the breeze. A sturdy tree to 18 m, it thrives in wind, cold and poor soils. Spring clusters of creamy flowers feed bees, while red‑tinged samaras add interest later. Hardy to −30 °C and needing only formative pruning, it supplies bold foliage colour in parks, estates and coastal gardens.