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Denomination: 'Poulduf'
Trade name: Courage
Botanical Name: Rosa
Applicant/Holder: Poulsen Roser A/S
Kratbjerg 332
Breeder: Mogens N. Olesen, Poulsen Roser A/S, Fredensborg, Denmark
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: 04-4270
Grant of Rights Date: 2008-12-30
Certificate Number: 3435
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2010-12-30
Date rights surrendered: 2011-12-13

Variety Description

Varieties used for comparison: 'Europeana' and 'John S. Armstrong'

Summary: 'Poulduf' has a lower number of long prickles on the stem than 'John S. Armstrong'. New leaves of 'Poulduf' are green while the new leaves of the reference varieties are red. 'Poulduf' has a low number of flowers per shoot while 'Europeana' has a medium number. 'Poulduf' has a larger flower diameter than 'Europeana'. 'Poulduf' has a full flower type while 'Europeana' has a double flower type. 'Poulduf' has a small yellow spot at the base of the petal while the reference varieties have a medium sized light yellow spot.


PLANT: upright to bushy, floribunda rose
YOUNG SHOOT: weak red anthocyanin colouration
PRICKLES/THORNS: concave, average number of long prickles, brown to yellow-brown

ENTIRE LEAF: medium green, absent to very weak glossiness, three to five leaflets
TERMINAL LEAFLET: serrate margin, leathery texture, rounded to oblique base

FLOWERING SHOOT: low number of flowers per shoot, two flowering periods
PEDICEL: few to medium prickles
FLOWER BUD: globular, red
SEPAL EXTENSIONS: weak to medium
FLOWER: fully opened flower irregularly rounded in shape when viewed from above, upper and lower part flattened convex when viewed from the side, full type, overall colour red
PETALS: red on upper side, dark purple red on lower side, small petal spot on inner and outer side, medium reflexing and undulation of margin
REPRODUCTIVE ORGANS: filament yellow with red tones, medium to long style, style pale yellow with red at top, stigma above anthers, receptacle medium in size and funnel shaped in longitudinal section.

Origin & Breeding History: 'Poulduf' originated from a cross between 'Poulart' as the female parent and an unnamed seedling as the male parent. The cross was made in the summer of 1983 at Fredensborg, Denmark. Seeds from the cross were planted in December 1983 and germinated during the winter and early spring. 'Poulduf' was selected in the spring of 1984. Selection criteria included compact growth habit, vigorous even growth, disease resistance, attractive foliage, medium to dark red flowers and cold hardiness.

Tests & Trials: The test and trial for 'Poulduf' was conducted in the field during the summer of 2007 in St. Thomas, Ontario. The trial included 6 plants of each variety. Bare root plants were planted in the Fall of 2005. Plants were grown in rows with plants spaced 60 cm apart and rows spaced 90 cm apart. Observations and measurements were taken on July 11, 2007. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Poulduf' with reference varieties 'Europeana' and 'John S. Armstrong'

Flower diameter (cm)

  'Poulduf' 'Europeana' 'John S. Armstrong'
mean 8.3 7.0 8.5
std. deviation 1.09 0.38 0.41

Petal colour (RHS)

  'Poulduf' 'Europeana' 'John S. Armstrong'
upper side - middle 45B 53C (more purple than) 45B-53C
upper side - margin 46A-45B 46B (darker than) 53B (more purple than)
upper side - spot 45B (more orange) with 14B spot 58C & 155D with 4D spot 45A-B & 155D with 1C spot
lower side - middle 53B-C 53D-58B 58B
lower side - margin 53B 53C 61C
lower side - base 46C with 14B spot 53D & 155D with 4D spot 58B & 155D with 1D spot

Click on image for larger view
Rose: 'Poulduf' (left) with reference variety 'Europeana' (centre) and 'John Armstrong' (right)

Click on image for larger view
Rose: 'Poulduf' (left) with reference variety 'Europeana' (centre) and 'John Armstrong' (right)

Click on image for larger view
Rose: 'Poulduf' (left) with reference variety 'Europeana' (centre) and 'John Armstrong' (right)

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