HSOPR015

Hydrangea

Variety Description

Variety used for comparison: 'Blue Billow'

Summary: The stem of 'HSOPR015' is green while that of 'Blue Billow' is brownish. The incisions along the leaf blade margin of 'HSOPR015' are medium to deep while those of 'Blue Billow' are of medium depth. The calyx diameter of the sterile flower of 'HSOPR015' is small to medium while that of 'Blue Billow' is very small to small. The sepals of the sterile flower of 'HSOPR015' have a medium degree of overlapping while those of 'Blue Billow' have a strong degree of overlapping. The flowering of 'HSOPR015' begins early to mid-season while that of 'Blue Billow' begins early.

Description:

PLANT: non-climbing type, semi upright growth habit, very short to short
STEM: no fasciation, green, absent or few lenticels in autumn

LEAF BLADE: short to medium length, narrow to medium width, no lobing, ovate, medium length tip, obtuse base, medium to deep incisions, no variegation, medium green, no secondary colour, absent or weak glossiness of upper side, medium degree of blistering

INFLORESCENCE: flattened, short to medium height, small to medium diameter, very conspicuous fertile flowers, sterile flowers arranged in one whorl, flowers early to mid-season
CALYX: small to medium diameter
STERILE FLOWER: single type
SEPALS OF STERILE FLOWER: medium degree of overlapping, incisions along margin on some sepals, when fully opened medium blue pink (RHS 62D), no secondary colour
PETALS OF FERTILE FLOWER: pink

Origin & Breeding History: 'HSOPR015' originated from a cross pollination conducted by the breeder Wouter Marques at Oprins Plant N.V. in Rijkevorsel, Belgium in July 2010. The cross was made between two unnamed proprietary seedlings, Hydrangea serrata var. yezoenesis (female) and Hydrangea serrata (male). From the resulting progeny, 'HSOPR015' was selected as a single plant in August 2014 in Rijkevorsel, Belgium based on its low growing plant growth habit, root sucker production, fall foliage colour and inflorescence held primarily above the foliage. 'HSOPR015' was first asexually propagated by softwood cuttings in September 2014 in Rijkevorsel, Belgium.

Tests & Trials: The detailed description of 'HSOPR015' is based on the UPOV report of Technical Examination, application number 20172689, purchased from the Community Plant Variety Office in Angers, France. The trials were conducted by Groupe d'Étude et de Contrôle des Variétés et des Semences in Brion, France between February 15, 2018 and December 15, 2019. Colour determinations were made using the 2015 Royal Horticultural Society (RHS) Colour Chart.

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Hydrangea: 'HSOPR015'

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Hydrangea: 'HSOPR015'