Niels Ebbesen Hansen
|‡Bulletin No. 22, 32 and 36, Iowa Experiment Station, J. L. Budd and N. E. Hansen.|
Of single roses the Siberian, Rosa rugosa is perfectly hardy. Plant breeders have been busy of late years in Europe and America hybridizing this rose with various cultivated double roses.‡ We imported several of these later productions last fall. Two rugosa hybrids imported from Germany and planted in the spring of 1896 at this Station, have proven sufliciently hardy, to blossom freely without winter protection, although not perfectly hardy. One is Madame George Bruant, with semi-double pure white fragrant flowers; the other is Madame Chas. Frederic Worth. This variety produces beautiful, double flowers in terminal clusters all summer beginning about July first. The thick leathery wrinkled leaves show the influence of Rosa rugosa. Plants of this variety secured for Prof. Budd, in Germany in 1894, by the writer have proven hardy and very desirable at the Iowa Experiment Station.
It now appears probable that most of the future hardy double roses for the prairie northwest will have Rosa rugosa as one of its ancestors.
Rosa rugosa,Thunb. Native of north China, Manchuria, Amurland, Kamtschatka, Corea, Sachalin and Japan. A hardy rose of vigorous growth, with strong "thorny branches, thick leathery wrinkled glossy foliage, and large crimson fragrant single flowers. Some plants out of a lot grown from seed planted last spring are bearing flowers during this, their first season of growth. The buds of this rose are long pointed and very handsome. The bush merits a place in clumps of shrubbery on the lawn, and all its hybrids are worth testing in a small way.
Rosa rugosa flore plena, Hort. This is a double variety imported originally from Russia by Prof. J. L. Budd. We have it also from our 1896 importation and from St. Petersburg, Russia, through the United States Department of Agriculture in the spring of 1898. All are perfectly hardy and free bloomers. In blossom by the first of June. The smaller leaves are less glossy and the purplish red flowers are less attractive than those of Rosa rugosa, but the plant is fully worthy of cultivation.
Rosa rugosa Kamtschatica, Vent. Native of Kamtschatka. Blossoms single, dark pink, buds large and thorny. Bush hardy and a free bloomer for about one month, beginning about the last week in May.
Rosa rugosa macrocarpa, Hort. A variety with larger seed pods or hips. In Russia the hips of Rosa rugosa are used for preserves, the seeds being removed and the remaining fleshy portion utilized. In autumn the large scarlet hips appear to much advantage in contrast with the glossy foliage.