campus: near the SW corner of Withycombe Hall, Campus Way and 30th St. This beautiful tree is mostly seen as a specimen tree in lawns. In addition, Jacobson states that, “at present, based upon leaf characteristics alone” some 10 named clones of purpleleaf plums, including ‘Thundercloud’, are “veritably indistinguishable”. At the same time the dark purple leaves begin to appear adding depth and texture to the scene. Furthermore comparing catalog descriptions of ‘Thundercloud’ and exanimating trees so named, it is obvious that more than one clone has been marketed under this name. The early history of ‘Thundercloud’, now written as a single word, is incomplete and the name was not widely used in the 1920s and 30s. As a deciduous tree, Thundercloud Plum will lose its leaves in autumn, but this exposes the bare branches for maximum viewing of the breathtaking spring flowers A Plum-Perfect Container Plant. Arthur Lee Jacobson in his monograph, Pupleleaf Plums (1992), reasons that we can’t be sure that it is the “same clone that in recent decades has become the most widely planted purpleleaf plum in North America”. Thundercloud Plum's perennial range extends across USDA Plant Hardiness Zones 5 through 8, where it is both cold- and heat-tolerant. In 1919 Luther Burbank, the innovative and renowned plant breeder of Santa Rosa, California, named a purpleleaf plum he selected as ‘Thunder Cloud’. Prune after flowering to keep trees vigorous. Prunus cerasifera‘Thundercloud’ - ‘Thundercloud’ Cherry Plum Other Figure 3. Often does not set a crop of fruit (hopefully!). Coppery-purple foliage through growing season. Flowers a few days later than 'Atropurpurea'. It bears simple, 2-4 long elliptically shaped leaves which are arranged alternately on the shoots. This deciduous garden tree grows to height and width of 25’. Thundercloud' flowering plum is grown for its red foliage which is borne on a fast growing and upright-spreading tree. Single pale pink to white flowers, appear before leaves. Scientific name: Prunus cerasifera 'Thundercloud'. Deciduous tree, small, 15-20 ft (4.5-6 m), similar width, shrubby, twiggy and rounded.
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