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Denomination: 'Argyminwhisi'
Trade name: Shere Mini White
Botanical Name: Argyranthemum frutescens
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Ánna M.W.P. Houbraken, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-317-7511
Application Date: 2005-11-25
Application Number: 06-5643
Grant of Rights Date: 2008-07-18
Certificate Number: 3266
Date rights surrendered: 2010-09-15

Variety Description

Variety used for comparison: 'Argyrantis' (Molimba Helio White)

Summary: 'Argyminwhisi' has shorter plants with sparser foliage than 'Argyrantis'. The leaf blades of 'Argyminwhisi' are smaller and have a thicker outline than those of 'Argyantis'. 'Argyminwhisi' has a shorter lateral lobe of the bleaf blade than 'Argyrantis'.


PLANT: upright bushy growth habit, short, medium width, medium foliage density

LEAF BLADE: medium length, narrow to medium width, attenuate base, cuspidate apex, dark blue green
LEAF BLADE LATERAL LOBE: short to medium length, narrow

PEDUNCLE: medium length, medium to thick
FLOWER: medium to broad diameter, semi-double
RAY FLORET: average of 20.8 per flower, straight with slight reflexing along longitudinal axis, medium to long, medium to broad, 2.4:1 ratio of length to width, white on upper and lower sides
FLORET DISC: yellow before dehiscence, lighter yellow after dehiscence
POLLEN: yellow orange

Origin & Breeding History: 'Argyminwhisi' was developed by the breeder, Anna M.W.P. Houbraken, an employee of Syngenta Seeds B.V. in Enkhuizen, The Netherlands. It originated from a controlled cross made in August 1998 in Enkhuizen, The Netherlands, between the female parent designated 'A0009-1' and mixed pollen from unidentified Argyranthemum frutescens plants. 'Argyminwhisi' was selected from the resultant progeny as a single plant in August 1999 based on its' leaf colour, flower quality and flower size.

Tests & Trials: Trials for 'Argyminwhisi' were conducted in a polyhouse during the spring of 2007 at BioFlora Inc. in St. Thomas, Ontario. The trials included 15 plants per variety. Rooted cuttings were transplanted into 15 cm pots on March 23, 2007. Measured characteristics were based on measurements taken from 10 plants or parts of plants on May 28, 2007. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Argyminwhisi' with reference variety 'Argyrantis'

Plant height (cm)

  'Argyminwhisi' 'Argyrantis'
mean 17.9 22.3
std. deviation 1.72 1.09

Leaf blade length (cm)

  'Argyminwhisi' 'Argyrantis'
mean 5.6 6.8
std. deviation 0.49 0.49

Leaf blade width (cm)

  'Argyminwhisi' 'Argyrantis'
mean 2.7 4.1
std. deviation 0.26 0.68

Leaf blade lateral lobe length (cm)

  'Argyminwhisi' 'Argyrantis'
mean 2.1 3.3
std. deviation 0.37 0.52

Click on image for larger view
Argyranthemum: 'Argyminwhisi' (left) with reference variety 'Argyrantis' (right)

Click on image for larger view
Argyranthemum: 'Argyminwhisi' (left) with reference variety 'Argyrantis' (right)

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