Fat Domino


Denomination: 'Fat Domino'
Botanical Name: Bistorta amplexicaulis
Applicant/Holder: Ghyselen, Chris
Tinhoutstraat 36
8730 Oedelem
Breeder: Chris Ghyselen, Beernhem, Belgium
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2005-04-26
Application Number: 05-4785
Grant of Rights Date: 2013-04-04
Certificate Number: 4494
Grant of Rights Termination Date: 2031-04-04

Variety Description

Variety used for comparison: 'Blackfield'

Summary: 'Fat Domino' has taller plants with larger leaves than those of 'Blackfield'. The flower colour of 'Fat Domino' is sligthly lighter red than that of 'Blackfield'.


PLANT: upright to spreading growth habit, medium degree of branching
STEM: medium green, absent or very weak anthocyanin colouration, absent or very weak glaucosity, absent or very sparse pubescence

LEAF: alternate to whorled arrangement, simple, ovate, acute apex, cordate base, irregular serrate margin, margin slightly wavy
UPPER SIDE: sparse pubescence, medium to dark green, no variegation
LOWER SIDE: very sparse pubescence, medium green
PETIOLE: short, absent to very weak anthocyanin colouration

FLOWERING: almost continuous, mid to late season, medium length of flowering period
INFLORESCENCE: raceme, dense, terminal in position, erect attitude
FLORET: dark pink red to red (RHS 52A to 50A), medium size

Origin & Breeding History: 'Fat Domino' originated from a cross between two unnamed bistort selections, made in 2002 in Oedelem, Belgium. The objective of the breeding program was to create new bistort varieties with improved floral colours and foliage traits.

Tests & Trials: Trials were conducted during the summer of 2011 in Oxford Station, Ontario. Ten plants of each variety were grown in 22 cm pots in a polyhouse. Plants were spaced approximately 60 cm apart. Observations and measurements were taken on 10 plants of each variety. Colours were determined using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Fat Domino' with reference variety 'Blackfield'

Plant height (cm)

  'Fat Domino' 'Blackfield'
mean 47.13 34.70
std. deviation 11.19 5.68

Leaf blade length (cm)

  'Fat Domino' 'Blackfield'
mean 10.20 8.95
std. deviation 0.97 1.04

Leaf blade width (cm)

  'Fat Domino' 'Blackfield'
mean 4.51 3.33
std. deviation 0.44 0.40

Inflorescence length (cm)

  'Fat Domino' 'Blackfield'
mean 7.69 6.14
std. deviation 1.32 0.77

Colour of floret (RHS)

  'Fat Domino' 'Blackfield'
Colour chart number 52A to 50A 53B to 60A

Click on image for larger view
Fat Domino
Bistort: 'Fat Domino' (left) with reference variety 'Blackfield' (right)

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