Brief summary
Modern Rose, large-flowered climber "Ash Wednesday", introduced by Kordes Rosen in 1955, Particular color is not known by Roses-Are-Red, globular bloom shape, blooms 10 - 11 cm in size, has 3-5 buds per stem, once rebloom, has moderate fragrance, the bush shape can be climbing, arching, 300 - 500 cm in height, 200 cm in width, suitable for USDA zone 6 from -23°C and above, moderate resistance to black spot, moderate resistance to mildew.
More information
Wilhelm Cordes used Rosa rubiginosa to increase the winter hardiness of his roses. Aschermittwoch arose unexpectedly. A key characteristic is its colour, which shifts slightly and may show lilac, pink, or yellow tones, but most often appears as an unusual grey. The reverse of the petals is more silvery, creating a play of shadows between the petals as the flowers are borne in dense clusters. They appear in clusters of 3–15 flowers, bloom very abundantly, but only once. The shrub is vigorous and rather thorny. Protection against powdery mildew is recommended.
This once-blooming variegated rose is usually listed as white, though its variegated, nuanced colouring is not white. As its name indicates, the blooms are “ashy,” showing a distinct greyish tone or a milk-chocolate hue in cold weather, with variation among blooms. As a once-blooming variety, it has a single flowering period: in cold May–June conditions the colours are brighter; in hot, sunny weather it tends toward a greyish-lavender shade comparable to the Hybrid Tea ‘Stainless Steel.’ The variety is slow-growing.
The colour is atypical: clusters of double flowers combine bluish grey, ash, and lilac with a creamy-brown blush. The flowers are large, well-formed, densely ruffled, once-blooming, and very abundant. The bush is strong-growing, well-branched, and rather thorny. It establishes quickly after planting.