Brief summary
Modern Rose, shrub "Cardinal Hume", United Kingdom, introduced by Harkness & Co. Ltd in 1984, Usually is crimson in color, globular bloom shape, blooms 6 - 7 cm in size, has 5-10 buds per stem, repeat rebloom, has light fragrance, the bush shape can be spreading, 120 - 150 cm in height, 200 cm in width, suitable for USDA zone 6 from -23°C and above, low resistance to black spot, moderate resistance to mildew.
More information
Jack Harkness compares this shrub to David Austin’s English roses. The blooms open crimson and later turn purple, with a pale reverse. They appear in large clusters (usually 15–20 flowers), followed by bright scarlet hips that contrast with the autumn foliage. The foliage is dark and susceptible to black spot in cool, damp conditions, but in regions such as California it forms a tall, spreading bush.
The color range includes dark crimson, brownish, and purple tones. The genetic background combines various shrub roses, hybrid tea roses, and the species R. californica. The plant is spreading, with width exceeding height, and it branches readily; in hot climates it can reach substantial size. Flowers measure 7–8 cm in diameter, dense purple with warm reddish notes. The fragrance is moderate and distinctive, with notes of cinnamon and other spices, and it sometimes resembles the scent of dark red trilliums. The foliage is dense, dark green, matte, and disease-resistant. Bloom is nearly continuous. By season’s end, small red hips ripen. Propagates readily from cuttings. Now widely used in hybridization.