PWHEU0109

Heuchera

Denomination: 'PWHEU0109'
Trade name: Dolce Blackcurrant
Botanical Name: Heuchera
Applicant/Holder: Wijnhout, A.
Muntstraat 26
2165 VJ
Lisserbroek
Netherlands
Breeder: A. Wijnhout, Lisserbroek, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Canada
Tel: 519-631-6241
Application Date: 2007-03-02
Application Number: 07-5783
Grant of Rights Date: 2010-02-18
Certificate Number: 3774
Grant of Rights Termination Date: 2028-02-18

Variety Description

Varieties used for comparison: 'TNHEU044' (Dolce Licorice) and 'Velvet Night'

Summary: 'PWHEU0109' has stronger undulation of the leaf margin than 'Velvet Night'. The main colour on the upper side of the leaf blade is grey for 'PWHEU0109' while it is dark purple for 'TNHEU044' and dark grey for 'Velvet Night'. The lower side of the leaf blade is purple for 'PWHEU0109' while it is red to purple for 'TNHEU044'. The upper side of the leaf blade has more conspicuous venation for 'PWHEU0109' than for both reference varieties.

Description:

PLANT: growth habit intermediate between upright and arching

LEAF: palmate, weak rugosity, broad ovate, closed to partly overlapping, medium depth lobing, margins ciliate with shallow crenate incisions, medium to strong undulation of margin, weak to medium glossiness, very sparse pubescence on upper side, absent to very sparse pubescence on lower side, grey on upper side, purple on lower side
PETIOLE: sparse pubesence.

Origin & Breeding History: 'PWHEU0109' was discovered as a chance seedling of unknown parentage, in Hillegom, The Netherlands in October 2001. Selection criteria included foliage colour and shape.

Tests & Trials: Trials for 'PWHEU0109' were conducted in a polyhouse during the spring of 2008 in St. Thomas, Ontario. The trial included a total of 15 plants of each variety. All plants were grown from rooted cuttings which were transplanted into 15 cm pots on May 16, 2008. Observations and measurements were taken from 10 plants of each variety on August 6, 2008. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart 2001.


Comparison tables for 'PWHEU0109' with reference varieties 'TNHEU044' and 'Velvet Night'

Colour of upper side of leaf blade (RHS)

  'PWHEU0109' 'TNHEU044' 'Velvet Night'
new growth - between veins 202B-C N186A (darker than) 202B (lighter than)
new growth - veins N186A N187B-C 186A
mature growth - between veins 198B (greyer than) 202B 202B-C
mature growth - veins N200A 200A 202A

Colour of lower side of leaf blade (RHS)

  'PWHEU0109' 'TNHEU044' 'Velvet Night'
mature growth N79A (darker than) N79A (redder than) N79A (darker than)

Click on image for larger view
PWHEU0109
Heuchera: 'PWHEU0109' (left) with reference varieties 'TNHEU044' (centre) and 'Velvet Night' (right)

Click on image for larger view
PWHEU0109
Heuchera: 'PWHEU0109' (left) with reference varieties 'TNHEU044' (centre) and 'Velvet Night' (right)

Click on image for larger view
PWHEU0109
Heuchera: 'PWHEU0109' (left) with reference varieties 'TNHEU044' (centre) and 'Velvet Night' (right)

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