‘Spire’ (= ‘Hillier Spire’). This April-flowering hybrid cherry, reputed to be a hybrid of O-yama-zakura (Prunus sargentii) and Fuji cherry (P. incisa) is an upright grower, narrow at first, then becoming vase-shaped. The single flowers are faintly pink and produced against coppery red emerging foliage, which often turns red in autumn. Unfortunately very susceptible to brown rot and often disfigured by that disease, so generally no longer planted in the Vancouver area.