JS4

Weigela

Variety Description

Varieties used for comparison: 'Courtalor', 'Red Prince' and 'Abel Carrière'

Summary: In winter, the one year old shoot of ‘JS4' is light brown while those of ‘Red Prince' and ‘Abel Carrière' are red brown in colour. The leaf blade of ‘JS4' is ovate with medium sized incisions of margin while that of ‘Red Prince' is elliptic with fine incisions of margin. The leaf blade of ‘JS4' has very weak to weak blistering while that of ‘Abel Carrière' has strong blistering. The main colour on the inner side of the flower of ‘JS4' is violet red while that of ‘Courtalor' and ‘Abel Carrière' is pink The flower of ‘JS4' is funnel shaped while those of ‘Courtalor', ‘Red Prince' and ‘Abel Carrière' are campanulate in shape. The plants of ‘JS4' have a second period of flowering in the fall while the plants of ‘Courtalor' do not have a second period of flowering.

Description:

PLANT: strong vigour, erect growth habit, very long duration of first flowering, second flowering period in fall

ONE-YEAR-OLD-SHOOT: light brown in winter

LEAF BLADE: ovate shape, narrow to medium width, medium sized incisions of margin, medium to strong undulation of margin
LEAF BLADE (UPPER SIDE): green, medium colour intensity, no variegation, very weak to weak blistering
LEAF BLADE (LOWER SIDE): absent or very sparse pubescence

INFLORESCENCE: simple panicle type
SEPAL: absent or very sparse pubescence, green
FLOWER: violet red on inner side, medium size, funnel shaped
COROLLA LOBE: pointed apex
OVARY: medium density of pubescence
PISTIL: longer than corolla tube

Origin & Breeding History: ‘JS4' originated from a controlled cross between the female parent ‘JS2' and male parent ‘Red Prince', conducted in Hazerswoude-Dorp, the Netherlands in June 2015. The new variety ‘JS4' was selected in June 2018 based on its plant growth habit, foliage colour, flower colour, flower number and flower type. Asexual reproduction was first conducted by softwood cuttings in June 2018.

Tests & Trials: The detailed description of 'JS4' is based on the UPOV report of Technical Examination, application number 20200837, purchased from the Community Plant Variety Office in Angers, France. The trial was conducted at the Brion Testing Station of the Groupe d'Etude et de contrôle des Variétés Et des Semences (GEVES) in Brion, France, from 2021 to 2022.

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Weigela: ‘JS4'

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Weigela: ‘JS4'