A deciduous tree of rounded habit 20 to 30 ft high, with glabrous, lustrous, green twigs. Leaves 21⁄2 to 4 in. long, roundish or broadly ovate, contracted at the end into a long tapering point, sharply and often doubly toothed, with scattered hairs on both sides, becoming glabrous except about the midrib beneath; leafstalk 1⁄2 to 3⁄4 in. long. Flowers pale rose, 1 to 11⁄4 in. across, fragrant, produced singly or in pairs (each on a very short stalk) from the joints of the previous year’s wood; petals broadly obovate; calyx 1⁄2 in. across, with oblong rounded lobes. Fruits described as yellowish, globose, 1 to 11⁄4 in. wide, scarcely edible; shell of nut perforated.
In China, P. mume has been cultivated as an ornamental for some 1,500 years, and is believed to be native in the northern parts of the country, also of Quelpaert Island, Korea. According to Handel-Mazzetti, it also grows wild in S.W. China. It was introduced to Japan at an early date and became one of the most popular of garden trees; according to Miyoshi, some three hundred varieties of it have been named there. It is also grown for its fruits, which are preserved by drying or salting and eaten as a vegetable.
P. mume was introduced to Britain in 1841, but it did not become established in cultivation here until the end of the last century, when various double forms began to be imported from Japan. Messrs Baltet of Troyes imported a pink-flowered double from Japan in 1878, which was first distributed as “P. myrobalana fl. pleno” or was placed under P. cerasifera, and this confusion seems to have lasted well into the present century. P. mume is, of course, an apricot, and not a plum.
The Japanese apricot is valuable in gardens, especially the double-flowered forms, for its early, profuse flowering, being generally in bloom about the same time as the almond, and at its best almost as beautiful. The flowers are delicately ^ perfumed. For all that, it is not at all common, and few nurserymen list it. It should be given a sheltered place.
cv. ‘Alba Plena’. – Flowers white, double.
cv. ‘Alphandii’. – Flowers semi-double, pink. The plants now under this name may not be all of one clone.
cv. ‘Beni-shidon’. – Flowers ruby-crimson, single, about 3⁄8 in. wide, very fragrant. Award of Merit February 14, 1961, when shown by the Sunningdale Nurseries. There is a fine specimen there on the office wall.
cv.‘Grandiflora’. – See under P. armeniaca var. ansu.
cv. ‘O-moi-no-wac’. – Flowers white, semi-double.
cv. ‘Rosemary Clarke’. – Raised by the famous nurseryman and plant-breeder W. B. Clarke of California and said to have large, semi-double white flowers with a red calyx. It possibly belongs to P. armeniaca var. ansu.
cv. ‘Pendula’. Branches pendulous, flowers single, pale pink.