POIPD2

Ninebark

Variety Description

Variety used for comparison: 'Seward' (Summer Wine)

Summary: The petiole of 'POIPD2' is longer than that of 'Seward'. The inner side of the petals of 'POIPD2' is white with blue pink overcolour covering a medium sized area whereas the inner side of the petals of 'Seward' is white with a pink overcolour covering a small area. The seed pod of 'POIPD2' is dark purple red to brown purple with orange tones whereas that of 'Seward' is brown red with light green tones.

Description:

PLANT: deciduous, upright bushy, dense foliage
BRANCH: medium to many, erect attitude, medium stiffness, reddish brown bark
BRANCHLET: medium density, medium green and red brown, medium intensity anthocyanin colouration

LEAF: alternate arrangement
LEAF BLADE: ovate, acute apex, cordate base, dentate margin, lobing present, medium depth of sinus, medium degree of glossiness, medium prominence of midrib on upper side, medium to strong prominence of midrib on lower side, upper side brown green (RHS 146A) with medium brown (RHS 166A) tones when newly opened in spring, upper side brown green (RHS 146A) with medium brown (RHS 166A) overtones when fully opened, lower side brown green (RHS 146B-C) with medium brown (RHS 177B) tones when fully opened, weak medium brown (closest to RHS 166A) anthocyanin colouration on lower side of mid-rib
PETIOLE: present

FLOWER BUD: white (RHS NN155B) with flush of light blue pink (RHS 62B)
INFLORESCENCE: corymb
PEDICEL: no anthocyanin colouration
FLOWER: rotate
COROLLA: inner side white (RHS NN155B) with blue pink (RHS 62C-D) overcolour, outer side white (RHS NN155B) with blue pink (RHS 62B-C) overcolour, overcolour covers medium sized area
STAMEN: positioned moderately above the flowers

SEED POD: dark purple red to brown purple (RHS 185A-B) with orange tones

Origin & Breeding History: 'POIPD2' originated from a cross conducted in June 2005, in Grand Haven, Michigan, USA. The cross was made between the female parent, Physocarpus opulifolius var. intermedius f. parvifolius, and pollen from the male parent, a proprietary selection coded 'D#2'. The new variety 'POIPD2' was selected in May 2008, in Grand Haven based on its plant habit, leaf colour, leaf size and disease tolerance. Asexual reproduction of 'POIPD2' was first conducted by softwood cuttings in the summer of 2008 in Grand Haven, Michigan, USA.

Tests & Trials: The comparative trial for 'POIPD2' was conducted in an outdoor irrigated container trial during the spring and summer of 2016 at Bioflora Inc., in St. Thomas, Ontario. The trial included a total of 12 plants each of the candidate and reference variety. All plants were grown in 11.3 litre containers, planted on July 13, 2015 from 10 cm rooted liners. The trial was arranged outdoors in rows with approximately 1 meter spacing between the plants. Observations and measurements were taken from 10 pants or parts of plants from each variety on June 1, 2016. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'POIPD2' with reference variety 'Seward'

Petiole length (cm)

Colour of seed pod (RHS)

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Ninebark: 'POIPD2' (left) with reference variety 'Seward' (right)

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Ninebark: 'POIPD2' (left) with reference variety 'Seward' (right)

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Ninebark: 'POIPD2' (left) with reference variety 'Seward' (right)