Denomination: 'TNHEU043'
Trade name: Dolce Peach Melba
Botanical Name: Heuchera
Applicant/Holder: Terra Nova Nurseries, Inc.
10051 S. Macksburg Rd.
Canby, Oregon
United States of America
Breeder: Kenneth Brown, Terra Nova Nurseries, Inc., Canby, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2005-06-08
Application Number: 05-4964
Grant of Rights Date: 2007-08-17
Certificate Number: 2865
Date rights surrendered: 2012-09-06

Variety Description

Varieties used for comparison: 'TNHEU041' and 'Peach Flambé'

Summary: 'TNHEU043' is a Heuchera variety which has closed to partly overlapping leaf bases whereas the reference variety 'Peach Flambé' has an open leaf base. The leaves of 'TNHEU043' have a similar main colour to 'TNHEU041' but the candidate variety has a light grey brown secondary colour in a netted pattern, compared with 'TNHEU041' which has no netting pattern. The petiole of 'TNHEU043' has sparse pubescence, while 'Peach Flambé' has medium to dense pubescence. The candidate variety also differs from the references in colour of the petiole.


PLANT: mounding growth habit (basal rosette)

LEAF: palmate type, 5 main lobes and one to two secondary lobes, closed to partly overlapping base, moderate lobing, crenate and ciliate margins, medium depth incisions, medium undulation of margin, medium pubescence on upper side, sparse pubescence on lower side (on veins), main colour of upper side greyed orange with light grey brown secondary colour in netted pattern, main colour of lower side greyed purple, sparse pubescence on petiole

Origin & Breeding History: 'TNHEU043' was developed by the breeder, an employee of Terra Nova Nurseries, Inc., in Canby, Oregon. The new variety originated from a controlled cross that took place in May 2001, between the Heuchera variety 'Amber Waves' as the female parent and the Heuchera variety 'Huntsman' as the male parent. The new variety was selected from the progeny of this cross in May 2003, based on leaf colour, winter leaf colour, flower colour and plant habit.

Tests & Trials: The tests and trials for 'TNHEU043' were conducted in a polyhouse during the summer of 2006 in St. Thomas, Ontario. The trial included a total of 15 plants of the candidate variety and reference varieties. All plants were grown from rooted cuttings and transplanted into 15 cm pots on May 10, 2006. Observations and measurements were taken from 10 plants of each variety on July 14, 2006. All colour measurements were made using the RHS Colour Chart 2001.

Comparison tables for 'TNHEU043' with reference varieties 'TNHEU041' and 'Peach Flambé'

Plant height (cm)

  'TNHEU043' 'TNHEU041' 'Peach Flambé'
mean 15.4 16.3 21.8
std. deviation 2.35 2.16 1.65

Plant width (cm)

  'TNHEU043' 'TNHEU041' 'Peach Flambé'
mean 28.0 32.3 39.2
std. deviation 4.10 3.23 2.90

Colour of upper side of leaf blade (RHS)

  'TNHEU043' 'TNHEU041' 'Peach Flambé'
main colour 176A N170B N200A
secondary colour 199C-D (netting) 147A-N199A (margins and base) 182B (netting)
veins 166B N170D N199A-N200A

Colour of petiole (RHS)

  'TNHEU043' 'TNHEU041' 'Peach Flambé'
main colour 182B-C lighter than 186C darker than 186A

Click on image for larger view
Heuchera: 'TNHEU043' (left) with reference varieties 'Peach Flambé' (centre) and 'TNHEU041' (right)

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