Denomination: 'Imspewhit'
Trade name: Spellbound White '10
Botanical Name: Impatiens walleriana
Applicant/Holder: Syngenta Crop Protection AG
Schwarzwaldallee 215
Breeder: Monica Sanders, Syngenta Seeds B.V., Enkhuizen, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2008-10-14
Application Number: 09-6736
Grant of Rights Date: 2011-08-19
Certificate Number: 4122
Date rights surrendered: 2014-07-11

Variety Description

Variety used for comparison: 'Imtrawhit' (Spellbound White)

Summary: The leaf of 'Imspewhit' is longer than the leaf of 'Imtrawhit'. The upper side of the leaf blade is medium to dark green for 'Imspewhit' while it is medium green for 'Imtrawhit'. The pedicel is longer for 'Imspewhit' than for 'Imtrawhit'. The ovary is small for 'Imspewhit' while it is medium in size for 'Imtrawhit'.


SHOOT: no anthocyanin colouration on upper third

LEAF: variegation absent, upper side medium to dark green, absent or very weak anthocyanin on upper side, lower side green with no anthocyanin colouration on midrib and veins
PETIOLE: upper side with no anthocyanin colouration

FLOWER: single, upper and lower side white (RHS NN155C), lower petal with medium depth of incision, no eye zone
PEDICEL: no anthocyanin colouration
SPUR: no anthocyanin colouration, medium degree of curvature
OVARY: small

Origin & Breeding History: The variety 'Imspewhit' originated from a controlled cross pollination made in February 2005, at Syngenta Seeds B.V., in Enkhuizen, The Netherlands. The female parent was a proprietary line designated W4039-1 and the male parent was a proprietary line designated W1452-1. The resultant seed was sown in a greenhouse in March 2005. The new variety 'Imspewhit' was selected as a single seedling in September 2005 in Enkhuizen, based on criteria for flower colour, plant habit and production characteristics.

Tests & Trials: Trials for 'Imspewhit' were conducted in a polyhouse during the summer of 2010 in St. Thomas, Ontario. Trials included 15 plants each of the candidate and reference varieties. Rooted cuttings were transplanted into 15 cm pots on April 21, 2010. Observations and measurements were taken from 10 plants of each variety on June 2, 2010. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Imspewhit' with reference variety 'Imtrawhit'

Leaf length (cm)

  'Imspewhit' 'Imtrawhit'
mean 6.4 5.4
std. deviation 0.53 0.47

Pedicel length (cm)

  'Imspewhit' 'Imtrawhit'
mean 2.5 1.9
std. deviation 0.20 0.37

Click on image for larger view
Impatiens: 'Imspewhit' (left) with reference variety 'Imtrawhit' (right)

Click on image for larger view
Impatiens: 'Imspewhit' (left) with reference variety 'Imtrawhit' (right)

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