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'White Mountains' rose References
Book (2001) Page(s) 92. White Mountains Large-flowered Climber, white, 1958. Not rated.
Book (1959) Page(s) 14. The objective of the breeding program on rambler roses has been the development of canes which would withstand temperatures as low as -20° or -25℉ without injury. Among the seedlings raised, selection has been made also for disease resistant leaves, vigorous growth, easy of propagation and a tendency to repeat blooming all summer long. To accomplish this purpose, a collection of species and hybrid roses from various parts of the world was made at the Horticultural Farm of the N.H. Agr. Exp. Station starting in 1950... White Mountains Distributed for testing as N.H. #5217, this vigorous rambler resulted from the self-pollination of Skinners Rambler in 1952. Its small white flowers are borne in large clusters along the previous years' canes in late June. The individual flowers have 45 petals and resemble the "sweetheart" type rose in the bud. These flowers have remained on the plant in good condition for as long as 37 days, turning greenish white with age. The canes are slender, thorny and vigorous but not rampant. Additional plants are easily propagated from Summer cuttings and all plants have been comkpletely winter hardy at Durham, N. H. The leaves are of the R. multiflora type, bright green and disease free for the most part. "White Mountains" has crossed readily with other roses. This rambler produces large numbers of small fruits, green in color, that mature viable seeds early in the fall. Skinners Rambler, the parent variety, was generously donated for this work by Dr. Frank L. Skinner, plant breeder and nurseryman, of Dropmore, Manitoba, Canada. It is a vigorous seedling of Rosa maximowizciana Regel having five pink petals, flowers in clusters in June on the preceeding years' canes, and sets viable seed with a number of unrelated pollen parents. It has 14 chromosomes and is therefore a diploid rose.
Book (1959) Page(s) 198. White mountains is a cultivar which resulted from using Skinner's Rambler pollen on Skinner's Rambler in 1952. It produces large clusters of small double flowers in June. There are 45 petals in the individual flower. The flowers are very long-lasting and do not fall readily. The leaves resemble those of Rosa multiflora and are very resistant to disease. It is easily grown from green cuttings in June-July. Hardy in New Hampshire so it should be all right to 25F. below zero.
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