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The most important rose cultivars bred by major breeders have code names as registration names. A code name or ICRAR code is a unique code, consisting of letters of the 26‑letter Roman alphabet, given to a new registered rose variety, to distinguish it from other varieties (cultivars) of roses.
The following is a selected list of rose varieties and cultivars which currently (2017) [1] hold the Royal Horticultural Society's Award of Garden Merit. [ 2 ] [ 3 ] List of roses
After eight years of testing, Star Roses introduced the new rose into the United States in 2000 under the marketing name of 'Knock Out'. The extremely hardy rose cultivar was successful that first year, and has become one of America's top selling roses. 'Knock Out' is also the original rose variety of a large family of 'Knock Out rose varieties ...
Rosa banksiae Rosa persica. There are currently four subgenera in Rosa, although there have been some disputes over the years. [3] The four subgenera are: Hulthemia (formerly Simplicifoliae, meaning "with single leaves") containing one or two species from Southwest Asia, R. persica and R. berberifolia (syn. R. persica var. berberifolia) which are the only species without compound leaves or ...
'Rock & Roll' was created by American rose breeder, Tom Carruth, in 2006 and introduced into the United States by Weeks Wholesale Rose Grower, Inc. in 2007. [3] The stock parents of this rose are the multi-colored Floribunda cultivar, 'George Burns' (Carruth 1998) and the hybrid tea rose , 'New Zealand' ( McGredy 1989).
She led Edwin Murrell Ltd from 1937 to 1970 and was an internationally respected rose-grower and authority on rose species, old-fashioned varieties and miniature roses. Jacques Mouchotte, of Meilland International SA , developed a large number of rose varieties from 1978 to his retirement in 2013.
Blooms are large, with an average diameter of 4—5 in (10—12 cm), with 30 to 35 petals. Flowers are a scarlet red with a silvery white reverse. The rose has a mild fragrance. Blooms have a high-centered, relaxed bloom form, and are borne mostly solitary on long, upright stems, in small clusters. Leaves are large, glossy, leathery, and dark ...
The McCartney Rose (1991 — Meilland, France) The Miller (1970 — Austin, United Kingdom) The Queen Alexandra Rose (1918 — McGredy, Ireland) Thelma Barlow (2001 — Fryers, Cheshire) Thérèse Bugnet (1950 — Bugnet, Canada) Therese Zeimet-Lambert (1923 — Lambert, Germany) Thisbe (1918 — Pemberton, United Kingdom)