Crimson Spire is a narrow, columnar ornamental Prunus - one of the most useful formal trees available for Perth gardens where vertical accent is needed without the spread of a standard tree. The upright habit is genuinely tight: it stays under 2m wide while reaching 5-7m in height. Deep red-purple foliage through the growing season is punctuated by pale pink blossom in late winter on the bare branches. Outstanding for lining driveways, formal garden axes, and positions between buildings or walls where a standard spreading tree would encroach. Full sun. Well-drained soil. Drought tolerant once established.