Plants – Rose – Climber
Plant Patent
1998-12-22
2001-01-02
Locker, Howard J. (Department: 1661)
Plants
Rose
Climber
Plant Patent
active
PP011730
ABSTRACT:
SUMMARY OF THE INVENTION
The new variety of shrub rose plant (
Rosa hybrida
) of the present invention was created through a complex pedigree controlled breeding program that was carried out at Morden, Manitoba, Canada. The ‘Adelaide Hoodless’ variety was crossed with
Rosa arkansana
Porter to obtain an offspring that was crossed with the ‘Mount Shasta’ variety. This cross produced a parent used in the creation of the new variety. The other parent of the new variety was formed by the crossing of the ‘Prairie Princess’ variety and the ‘Morden Amorette’ variety. None of the plants used to create the new variety have been patented in the United States. The ‘Prairie Princess’ variety is a shrub rose (Rosa sp.) developed by G. Buck in 1972 and the ‘Mount Shasta’ variety is grandiflora rose (Rosa sp.) developed by Swim and Weeks during 1963. The ‘Morden Amorette’ variety and the ‘Adelaide Hoodless’ variety are members of the PARKLAND Series of roses.
Rosa arkansana
Porter is a prairie hardy native tetraploid rose found in the Great Plains region of North America. The final cross of the breeding program was completed during 1984.
The parentage of the new variety can be summarized as follows:
[‘Prairie Princess’בMorden Amorette’]×[‘Mount Shasta’×(‘Adelaide Hoodless’×
Rosa arkansana
Porter)].
It was found that a single plant of the new variety of shrub rose plant of the present invention was created through the above-identified breeding program which possesses the following combination of characteristics:
(a) exhibits an open and semi-erect growth habit,
(b) forms clusters of attractive semi-double somewhat flattened white blossoms,
(c) forms attractive glossy dark green foliage,
(b) propagates well by the use of softwood cuttings,
(e) exhibits good winter hardiness,
(f) exhibits excellent disease resistance, and
(g) is particularly well suited for growing as ornamentation in the landscape.
Rose plants of the new variety can be grown well on their own roots outdoors without protection at Morden, Manitoba, Canada. Blossom production commonly begins in early June at Morden, Manitoba, Canada and commonly is completed by mid-September. Good blossom coverage (e.g., up to approximately 30 percent or more of the entire plant at week three of blooming) is achieved which contrasts nicely with the attractive dark green foliage.
Accordingly, the new variety well meets the needs of the horticultural industry. It can be grown to advantage as attractive ornamentation as an individual plant or as a mass planting in parks, gardens, public areas, and residential landscapes.
The characteristics of the new variety have been found to be homogenous and stable and have been shown to be strictly transmissible by asexual propagation by the rooting of softwood stem cuttings conducted at Morden, Manitoba, Canada.
The new variety initially was designated 84J3T403 and X6 and subsequently has been named the ‘Morden Snowbeauty’, The name was selected to reflect the white flower coloration and the excellent field performance of the plant. It constitutes an attractive white-flowered member of the PARKLAND Series of roses.
Collicutt Lynn M.
Davidson Campbell G.
Burns Doane Swecker & Mathis L.L.P.
Her Majesty the Queen in right of Canada as represented by the
Locker Howard J.
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