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Appletini

Heuchera

Denomination: 'Appletini'
Botanical Name: Heuchera
Applicant/Holder: Walters Gardens, Inc.
1992 96th Avenue
P.O. Box 137
Zeeland, Michigan
49464-0137
United States of America
Breeder: Hans A. Hansen, Zeeland, United States of America
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Canada
Tel: 613-258-9015
Application Date: 2016-12-02
Provisional Protection:: 2016-12-02
Application Number: 16-9043
Date Withdrawn: 2022-04-14

Variety Description

Varieties used for comparison: 'Citronelle' and 'Pretty Pistachio'

Summary: The petiole of 'Appletini' is longer than the petiole of 'Pretty Pistachio'. The petiole of 'Appletini' is medium brown purple while the petiole of 'Citronelle' is light green and brown red and that of 'Pretty Pistachio' is light green and medium brown purple. The upper side of the young leaf blade of 'Appletini' is light green with darker green distributed along the veins while the upper side of the young leaf blade of 'Citronelle' and 'Pretty Pistachio' is light green throughout. The leaf blade of 'Appletini' is shorter than the leaf blade of 'Pretty Pistachio'. The leaf blade of 'Appletini' has deep sinuses between the lobes and strong undulation of the margin while that of 'Pretty Pistachio' has sinuses of medium depth and a medium degree of undulation of the margin. The upper side of the leaf blade of 'Appletini' is light green with darker green distributed along the veins while the upper side of the leaf blade of 'Citronelle' is light green throughout and that of 'Pretty Pistachio' is medium yellow green throughout. The plants of 'Appletini' begin flowering early to mid-season while those of 'Citronelle' begin flowering mid to late season. The flowering stem of 'Appletini' is medium brown purple with a medium density of flowers while that of 'Citronelle' is medium brown purple to brown red with sparse flower density. The flower bud of 'Appletini' is dark purple red while it is white for 'Citronelle' and light red pink for 'Pretty Pistachio'. The flower of 'Appletini' has an upwards attitude while the flowers of the reference varieties have a semi-downwards attitude. The outer side of the flower is dark red for 'Appletini' while it is white for 'Citronelle' and light red pink to light blue pink for 'Pretty Pistachio'.

Description:

PLANT: medium density of foliage

PETIOLE: sparse pubescence, medium brown purple (RHS 185D)
YOUNG LEAF BLADE (UPPER SIDE): light green (RHS 145B/C) distributed throughout in a solid or nearly solid pattern over a large area, light green (RHS 144B) distributed along veins in a solid or nearly solid pattern over a small area
LEAF BLADE: very slightly elongated to slightly elongated length to width ratio, rounded apex, deep sinuses between lobes, medium number of shallow indentations of margin, strong undulation of margin, weak rugosity
LEAF BLADE (UPPER SIDE): absent or very weak glossiness, absent or very sparse pubescence, light green (between RHS 157A and 145D) distributed throughout in a solid or nearly solid pattern over a medium to large area, light green (RHS N144C) distributed along veins in a solid or nearly solid pattern over a small area
LEAF BLADE (LOWER SIDE): light green (RHS 144D to 145D), absent or very sparse pubescence

TIME OF FLOWERING: begins early to mid-season
FLOWERING STEM: upright to semi-upright attitude, medium brown purple (RHS 187A), length to width ratio of flowering part moderately to strongly elongated, medium density of flowers
FLOWER BUD: dark purple red (RHS 46A)
FLOWER: upwards attitude, short to medium length, narrow to medium width, dark red (RHS 45A/B) on outer side

Origin & Breeding History: 'Appletini' originated from a controlled cross conducted by the breeder, Hans Hansen, in Zeeland, Michigan, USA on January 30, 2012. The cross was conducted between two unreleased proprietary hybrids, 11-8-1, as the female parent, and K11-52-16, as the male parent. During the spring of 2013, 'Appletini' was selected for its flower colour, foliage colour, plant growth habit, heat tolerance, number of flowers and vigour. 'Appletini' was first propagated asexually using stem cuttings in the fall of 2014.

Tests & Trials: The comparative trial for 'Appletini' was conducted outdoors during the summers of 2018 and 2020 at Variety Rights Management in Oxford Station, Ontario. The trial included 20 plants of 'Appletini', 19 plants of 'Citronelle' and 20 plants of 'Pretty Pistachio' in both trial years. The plants were grown in 16 cm pots with 40 cm spacing between pots under a galvanized steel structure covered with black mesh shade fabric. The observations and measurements were taken from 10 plants, or 10 parts of plants, of each variety. Data on the flowering characteristics was collected in 2020. All colour determinations were made using the 2015 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Appletini' with reference varieties 'Citronelle' and 'Pretty Pistachio'

Petiole length (cm)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
mean 8.5 7.7 6.3
std. deviation 1.0 0.9 1.1

Colour of petiole (RHS)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
main 185D 145C and 182C 145A and 185C

Colour of young leaf blade (RHS)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
colour one 145B/C 144B to N144C N144A
colour two 144B N/A N/A

Leaf blade length (cm)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
mean 5.9 6.1 6.3
std. deviation 0.2 0.5 0.4

Colour of upper side of leaf blade (RHS)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
colour one 157A and 145D N144A/B 151C/D
colour two N144C along veins N/A N/A

Colour of flowering stem (RHS)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
main 187A 182A/B 184D

Colour of flower bud (RHS)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
main 46A N155C 49D

Colour of flower RHS)

  'Appletini' 'Citronelle' 'Pretty Pistachio'
outer side 45A/B NN155C 50D to 54D

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Appletini
Heuchera: 'Appletini'

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Appletini
Heuchera: Reference variety 'Citronelle'

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Appletini
Heuchera: Reference variety 'Pretty Pistachio'

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