Denomination: 'Imtrarestar'
Trade name: Spellbound Strawberry Star
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: 2005-05-06
Application Number: 05-4874
Grant of Rights Date: 2007-11-28
Certificate Number: 3042
Date rights surrendered: 2013-11-13

Variety Description

Varieties used for comparison: 'Imtrarose' (Spellbound Rose) and 'Imtrabastar' (Spellbound Blackberry Star)

Summary: 'Imtrarestar' is slightly taller in plant height than 'Imtrarose'. The leaf of 'Imtrarestar' is slightly longer than 'Imtrarose'. 'Imtrarestar' has a dark green leaf colour while it is medium green in 'Imtrarose'. The red colouration between the veins on the lower side of the leaf of 'Imtrarestar' has weaker intensity than 'Imtrarose' and 'Imtrabastar'. 'Imtrarestar' has a purple red and white flower colour on the upper side of the petal while it is purple in 'Imtrarose' and purple and white for 'Imtrabastar'. The lower side of the flower petal in 'Imtrarestar' is dark pink red to red pink while it is blue pink in 'Imtrarose' and purple and white in 'Imtrabastar'.


PLANT: weak to medium speckled anthocyanin colouration at the internodes on the upper third of the shoot

LEAF: no variegation, dark green, strong anthocyanin colouration on the upper side midvein, red and green between the veins on the lower side, absent or very weak anthocyanin colouration on the midrib and veins of the lower side, strong anthocyanin colouration on the upper side of the petiole in the form of streaks

FLOWER: single type, bicolour, purple red fading to blue pink on upper side with white along the midrib of the petal, dark pink red to red pink on lower side, no eye zone, absent to very shallow incision on the lower petal, very weak to weak anthocyanin colouration on the pedicel
SPUR: absent to very weak anthocyanin colouration, weak curvature

Origin & Breeding History: 'Imtrarestar' originated from a cross made in November 2002 in Enkhuizen, The Netherlands, between the female parent 'T3108-2' and the male parent 'T2463-1'. A plant was selected from the resultant progeny in September 2003, in Enkhuizen, The Netherlands based on plant habit, flower size and flower colour.

Tests & Trials: Trials were conducted during the summer of 2006 in St. Thomas, Ontario. Trials include 15 plants of each variety individually grown in 11cm pots in a poly house. Observations and measurements were taken from 10 plants of each variety. All colour measurements were made using RHS colour chart 2001.

Comparison tables for 'Imtrarestar' with reference varieties 'Imtrarose' and 'Imtrabastar'

Plant height (cm)

  'Imtrarestar' 'Imtrarose' 'Imtrabastar'
mean 12.2 10.8 13.0
std. deviation 0.54 1.29 0.72

Leaf length (cm)

  'Imtrarestar' 'Imtrarose' 'Imtrabastar'
mean 6.0 5.3 5.9
std. deviation 0.64 0.51 0.69

Flower petal colour (RHS)

  'Imtrarestar' 'Imtrarose' 'Imtrabastar'
upper side primary more bright red than N57A more pink than N74A darker than N74A
upper side secondary N66C fading to N155B along midrib N/A 155C along midrib
lower side primary 52A-B N74D N74A
lower side secondary N/A N/A stripes of 155C

Click on image for larger view
Impatiens: 'Imtrarestar' (left) with reference varieties 'Imtrarose' (centre) and 'Imtrabastar' (right)

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