Denomination: 'Evipo020'
Trade name: Cassis
Botanical Name: Clematis
Applicant/Holder: Poulsen Roser A/S
Kratbjerg 332
Tel: 45 48 48 30 28

Raymond J. Evison, Ltd.
Domarie Vineries, Les Sauvagées, St. Sampsons
Channel Islands
United Kingdom
Breeder: Mogens N. Olesen, Poulsen Roser A/S, Fredensborg, Denmark
Raymond J. Evison, Raymond J. Evison, Ltd., Channel Islands, United Kingdom
Agent in Canada: Miller Thomson Pouliot LLP
1000 De La Gauchetière Street West, Suite 3700
Montréal, Quebec
H3B 4W5
Tel: 514-871-5449
Application Date: 2004-06-23
Application Number: 04-4267
Grant of Rights Date: 2010-06-28
Certificate Number: 3890
Date rights surrendered: 2016-06-22

Variety Description

Variety used for comparison: 'Etoile Violette'

Summary: 'Evipo020' has larger diameter flowers and longer sepals than 'Etoile Violette'. The upper side of the sepal of 'Evipo020' is blue violet with light blue violet tones and a dark violet and violet central bar while for 'Etoile Violette', it is dark reddish violet with dark violet tones and violet central bar. The lower side of the sepal of 'Evipo020' is light blue violet and yellow green with dark violet overtones while it is dark violet for 'Etoile Violette'. The flowers of 'Evipo020' have petaloid staminodes while those of 'Etoile Violette' do not.


PLANT: climbing type, weak vigour
YOUNG SHOOT: dense pubescence

LEAF: simple and biternate types
LEAF BLADE: ovate shape, ranging between acute and cuspidate apices, obtuse to oblique base, entire margin, three or four lobes per leaf blade, deep sinus between lobes, upper side is light to medium green, no variegation

FLOWER: solitary arrangement, outward facing attitude, single anemone type, rotate shape, cross-section in lateral view is concave, absent or very weak fragrance
SEPAL: four to six per flower, arrangement is touching to not touching, obovate shape, concave in cross-section, curvature in longitudinal-section is absent to moderately reflexed, acute apex with mucronate tip, type two base, more than one colour on upper side, upper side is blue violet (RHS 83D) with light blue violet (RHS 84D) tones towards margin and dark reddish violet (redder than RHS 83A) and violet (RHS 77A) central bar, lower side is light blue violet (RHS 85A) and yellow green (RHS 150D) with dark violet (RHS 83A) overtones, weak undulation of margin, no twisting along longitudinal axis
PETALOID STAMINODE: many developing with age, upper side is white with violet
FILAMENT: greenish when flower is newly open

Origin & Breeding History: 'Evipo020' originated from a cross made in the spring of 1996 between the Clematis viticella variety 'Vinesa Violacea' and an unnamed seedling. The resulting seed was planted in December 1996 and in the spring of 1997, the seedlings were selected at Domarie Vineries Les Sauvagees, in St. Sampsons, Guernsey, Channel Islands, United Kingdom. The objective of this hybridization was to create a new and distinct variety for commercial glasshouse and nursery culture with a long flowering season, purple double blooms, evergreen foliage when protected from frost, good flower longevity and improved continuous flowering.

Tests & Trials: Trials for 'Evipo020' were conducted in a polyhouse during the winter and spring of 2009 at BioFlora Inc. in St. Thomas, Ontario. It included 10 plants of the candidate variety and 6 plants of the reference variety. All plants were grown from bare-rooted plants which were transplanted into 4.4 litre containers on December 16, 2008. Observations and measurements were taken from 10 plants or parts of plants of the candidate variety on May 7, 2009, and 6 plants or 10 parts of 6 plants of the reference varieties on May 25, 2009. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Evipo020' with reference variety 'Etoile Violette'

Flower diameter (cm)

  'Evipo020' 'Etoile Violette'
mean 11.1 7.6
std. deviation 0.57 0.53

Sepal length (cm)

  'Evipo020' 'Etoile Violette'
mean 5.6 4.5
std. deviation 0.32 0.29

Flower colour (RHS)

  'Evipo020' 'Etoile Violette'
upper side of sepal - main colour 83D with 84D tones more red than 83A with N79A tones
upper side of sepal - secondary colour central bar is redder than 83A with 77A between veins N79C central bar
lower side of sepal 85A and 150D with 83A overtones 83B
petaloid staminodes white with violet N/A

Click on image for larger view
Clematis: 'Evipo020' (left) with 'Etoile Violette' (right)

Click on image for larger view
Clematis: 'Evipo020' (left) with 'Etoile Violette' (right)

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