Plants – Shrub or vine – Clematis
Plant Patent
2003-02-13
2004-05-25
Bell, Kent (Department: 1661)
Plants
Shrub or vine
Clematis
Plant Patent
active
PP014823
ABSTRACT:
Genus: Clematis.
Species: ×
hybrida.
Denomination: Pretty in Blue.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of Clematis that is grown for use as an ornamental in the landscape. The new cultivar is known botanically as Clematis and will be referred to hereinafter by the cultivar name ‘Pretty in Blue’.
‘Pretty in Blue’ resulted from a formal breeding program that was established by the inventor in 1992 in Boskoop, Holland. The purpose of the breeding program was to find out if the inventor could successfully crossbreed two species, which had not been accomplished in 140 years, and in doing so produce hardy varieties that are easy to propagate, exhibit improved flower color and resistance to pests and disease.
The female parent plant is
Clematis integrifolia
‘Olgae’ (unpatented) and the male parent plant is
Clematis recta
(unpatented). ‘Pretty in Blue’ is a hybrid plant that resulted from the hybridization between the pollen parent
Clematis recta
and the seed parent
Clematis integrifolia
‘Olgae’. The cross was conducted by the inventor in a cultivated area of Boskoop, Holland and ‘Pretty in Blue’ was selected by the inventor in 1996 based on the unique flowers, long blooming period, ease of propagation, and free-flowering.
‘Pretty in Blue’ is a perennial exhibiting an upright to decumbent habit, upright violet-blue flowers with contrasting yellow stamens, large inflorescences and a long period of free-flowering. Propagation is accomplished using softwood cuttings. The closest comparison plant is Clematis ‘Aromatica’ (unpatented). ‘Pretty in Blue’ is distinguishable from ‘Aromatica’ by a longer blooming period and ability to be easily and readily propagated. ‘Pretty in Blue’ differs from the female parent plant in flower color and habit, while differing from the male parent plant in flower color.
The first asexual propagation was accomplished by the inventor in 1996 in a cultivated area of Boskoop, Holland. Asexual propagation of the new cultivar by cuttings at the location previously stated, has shown that the unique features of the new Clematis cultivar ‘Pretty in Blue’ are stable and the plant reproduces true to type in successive generations of asexual propagation.
SUMMARY OF THE INVENTION
The following represent the distinguishing characteristics of the new Clematis cultivar ‘Pretty in Blue’. In combination these traits set ‘Pretty in Blue’ apart from all other existing varieties of Clematis known to the inventor. ‘Pretty in Blue’ has not been tested under all possible conditions and phenotypic differences may be observed with variations in environmental, climatic, and cultural conditions, however, without any variance in genotype.
1. Clematis ‘Pretty in Blue’ exhibits upright violet-blue flowers with contrasting yellow stamens.
2. Clematis ‘Pretty in Blue’ is free-flowering and blooms over a long period of time.
3. Clematis ‘Pretty in Blue’ is readily propagated using softwood cuttings.
4. Clematis ‘Pretty in Blue’ exhibits an upright to decumbent habit.
5. Clematis ‘Pretty in Blue’ exhibits medium-green foliage.
6. Clematis ‘Pretty in Blue’ is a perennial exhibiting large inflorescences.
7. Clematis ‘Pretty in Blue’ is hardy to USDA Zones 5&6.
REFERENCES:
GTITM UPOVROM Citation for ‘Pretty in Blue’ as per QZ PBR 010074; Jan. 15, 2001.
Needham Geoffrey
Plant Haven, Inc.
Planthaven, Inc.
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