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Denomination: 'Poulcot010'
Trade name: Linnaeus
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: 2010-12-09
Application Number: 10-7109
Grant of Rights Date: 2014-05-01
Certificate Number: 4761
Exemption from compulsory licensing: Yes
Expiry date for exemption from compulsory licensing: 2016-05-01
Date rights surrendered: 2015-05-11

Variety Description

Variety used for comparison: 'Poulcot001' (Meadow)

Summary: The prickles on the stem of 'Poulcot010' are reddish while they are greenish for 'Poulcot001'. The flower bud of 'Poulcot010' is orange red while it is yellow to light yellow for 'Poulcot001'. The flower of 'Poulcot010' is semi-double while it is mostly double for 'Poulcot001'. There are fewer petals on the flower of 'Poulcot010' than that of 'Poulcot001'. The colour of the inner side of the petal is light yellow with purple red to light blue pink at the marginal zone while it is yellow throughout for 'Poulcot001'. The colour on the outer side of the petal of 'Poulcot010' is closest to red pink with dark pink red at the margin and yellow at the base while it is yellow for 'Poulcot001'. The filament of the outer stamen of 'Poulcot010' is medium yellow to orange while it is light yellow for 'Poulcot001'.


PLANT: shrub type, intermediate growth habit
YOUNG SHOOT: anthocyanin colouration ranging from very weak to weak
PRICKLES: medium number, reddish

NEW LEAF: weak to medium anthocyanin colouration along margin edge
LEAF: medium to dark green on upper side, medium glossiness on upper side, absent or very weak undulation of margin
TERMINAL LEAFLET: medium elliptic, obtuse base, acuminate apex

FLOWERING SHOOT: few flowering laterals, medium number of flowers per lateral
FLOWER BUD: elliptic shape in longitudinal section, orange red (RHS 41B)
FLOWER: semi-double type, yellow blend to orange colour group, yellow centre, loose petal density, irregularly rounded, mostly concave profile on upper part, concave profile on lower part, absent or weak fragrance, weak sepal extensions
PETAL: no reflexing, broad obovate, absent or very weak incisions, absent or very weak reflexing of margin, weak undulation of the margin, two colours on the inner side, inner side light yellow (RHS 9C) with purple red to light blue pink (RHS 55B-C) at marginal zone, outer side red pink (closest to RHS 48B) with dark pink red (RHS 51B) at margin and yellow at the base
BASAL SPOT: absent
OUTER STAMEN: medium yellow-orange filament

Origin & Breeding History: 'Poulcot010' originated from a controlled crossing between two unnamed parent seedlings, and is a selection of one seedling among these resulting plants. The cross was made in the summer of 1999. Seeds were planted in December, 1999 and germinated during the winter and early spring. In the spring of 2000 the seedlings were selected in Fredensborg, Denmark. 'Poulcot010' was selected by the breeder based on its compact yet vigorous growth when propagated on own root, profusion of yellow orange blend flowers, resistance to typical rose diseases and an abundance of rose hips.

Tests & Trials: Trials for 'Poulcot010' were conducted in an outdoor trial during the summer of 2012 at BioFlora Inc. in St. Thomas, Ontario. Trials included 9 plants of the candidate variety and 6 plants of the reference variety. Plants were grown from bare-rooted plants, transplanted into 13.2 litre containers in April, 2012. Observations and measurements were taken from 10 plant parts of each variety on June 8, 2012. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Poulcot010' with reference variety 'Poulcot001'

Number of flower petals

  'Poulcot010' 'Poulcot001'
mean 15.4 21.8
std. deviation 1.88 3.19

Colour of flower bud (RHS)

  'Poulcot010' 'Poulcot001'
outer side 41B 8A-B

Colour of petal (RHS)

  'Poulcot010' 'Poulcot001'
inner side- main 9C 5C
inner side- secondary 55B-C N/A
outer side- main closest to 48B with 51B at margin, yellow at base 5C

Click on image for larger view
Rose: 'Poulcot010' (left) with reference variety 'Poulcot001' (right)

Click on image for larger view
Rose: 'Poulcot010' (left) with reference variety 'Poulcot001' (right)

Click on image for larger view
Rose: 'Poulcot010' (left) with reference variety 'Poulcot001' (right)

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