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Denomination: 'Poulcas026'
Trade name: Ronda Castle
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: 2006-03-07
Application Number: 06-5263
Date Withdrawn: 2009-08-25

Variety Description

Variety used for comparison: 'Poultry' (Redwood)

Summary: 'Poulcas026' has fewer prickles on the stem than 'Poultry'. The leaf of 'Poulcas026' is smaller than in 'Poultry'. 'Poulcas026' has a looser flower density with fewer flower petals than 'Poultry'. The flower petal margin of 'Poulcas026' has weaker undulation than 'Poultry'. 'Poulcas026' has a lighter purple red outer side petal colour than 'Poultry'.


PLANT: rosa hybrid, floribunda shrub type, semi-upright to intermediate growth habit
PRICKLES/THORNS: greenish to yellowish, few on the stem
LEAF: medium green on upper side, weak to medium glossiness on upper side, anthocyanin colouration present, very weak to weak undulation of margin
TERMINAL LEAFLET: ovate to circular shape, rounded base, acuminate apex

FLOWERING SHOOT: few flowering laterals, very few flowers per lateral
FLOWER BUD: medium ovate shape in longitudinal section
SEPAL: absent to very weak extensions
FLOWER: double type, loose petal density, irregularly rounded when viewed from above, flattened convex on upper part when viewed from the side, flattened convex on lower part when viewed from the side, red American Rose Society colour group, weak fragrance
PETAL: obovate shape, one colour, dark purple red to red (RHS 46A-B) on inner side, purple red (darker than RHS 58B) on outer side, weak reflexing of margin, weak undulation of margin
BASAL PETAL SPOT: very small, white to greenish on inner side
OUTER STAMEN: medium yellow filament

Origin & Breeding History: 'Poulcas026' originated from the controlled crossing in 1997 of the female parent, 'Poulgrad' with the unnamed male parent, in Fredensborg, Denmark. One seedling resulting from this cross was selected in the spring of 1998 based on compact uniform growth when propagated on own root, flower colour, flower longevity, suitability for container culture and resistance to diseases.

Tests & Trials: Field trials were conducted during the summer of 2008 in St. Thomas, Ontario. There were 8 plants of each variety planted in May 2007 in rows with plants spaced 2 feet apart and rows spaced 3 feet apart. All colour measurements were made using the Royal Horticultural Society Colour Chart 2001.

Comparison tables for 'Poulcas026' with reference variety 'Poultry'

Leaf length (cm)

  'Poulcas026' 'Poultry'
mean 7.0 9.7
std. deviation 0.58 1.18

Leaf width (cm)

  'Poulcas026' 'Poultry'
mean 4.6 6.6
std. deviation 0.71 0.35

Petal colour (RHS)

  'Poulcas026' 'Poultry'
outer side darker than 58B 53B-C

Click on image for larger view
Rose: 'Poulcas026' (left) with reference variety 'Poultry' (right)

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