Fruitful and dependable, 'Stanley' is as decorative as it is productive, with a dense, rounded form and an extremely profuse, fragrant show of single white flowers in early May. The whole tree may be completely obscured by this bloom that lasts up to 2 weeks with countless small fruit following soon after the bloom passes. This fruit grows and finally matures in September, producing a tasty prune-type plum that has purple skin, yellow flesh and a high sugar content that is great fresh or dried. 'Stanley' is self-fruitful so it is self-sufficient in producing its huge crop of tasty plums.