Denomination: 'Imtrabastar'
Trade name: Spellbound Blackberry 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: 05-4873
Grant of Rights Date: 2007-11-28
Certificate Number: 3041
Date rights surrendered: 2013-11-13

Variety Description

Varieties used for comparison: 'Imtrarose' (Spellbound Rose) and 'Imtrarestar' (Spellbound Strawberry Star)

Summary: 'Imtrabastar' is taller in plant height than 'Imtrarose'. The leaf of 'Imtrabastar' is darker green than 'Imtrarose'. 'Imtrabastar' has darker red between the veins on the lower side of the leaf than 'Imtrarestar'. The flower diameter of 'Imtrabastar' is slightly smaller than 'Imtrarose' and 'Imtrarestar'. 'Imtrabastar' has a more purple flower colour than 'Imtrarose' and 'Imtrarestar'. The flower spur of 'Imtrabastar' has a stronger curvature than 'Imtrarose' and 'Imtrarestar'.


PLANT: 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 on upper side with white along the midrib of petal, purple on lower side with white stripes, no eye zone, absent or very shallow incisions on the lower petal, very weak to weak anthocyanin colouration on the pedicel
SPUR: strong anthocyanin colouration at the tip, medium to strong curvature

Origin & Breeding History: 'Imtrabastar' originated from a cross made in November 2002 in Enkhuizen, The Netherlands, between the female parent 'T3108-1' and the male parent 'T2427-1'. 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 'Imtrabastar' with reference varieties 'Imtrarose' and 'Imtrarestar'

Plant height (cm)

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

Flower diameter (cm)

  'Imtrabastar' 'Imtrarose' 'Imtrarestar'
mean 4.3 5.1 4.6
std. deviation 0.15 0.18 0.34

Flower petal colour (RHS)

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

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

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