Denomination: 'Barthirtytwo'
Botanical Name: Phlox paniculata
Applicant/Holder: Bartels Stek B.V.
P.O. Box 26
2678 ZG
De Lier
Breeder: G.B.H. Bartels, Bartels Breeding B.V., Aalsmeer, Netherlands
Agent in Canada: Genesis Plant Propagation Ltd.
24245 48th Avenue
Langley, British Columbia
Tel: 604-514-1799
Application Date: 2006-04-06
Application Number: 06-5420
Grant of Rights Date: 2007-11-22
Certificate Number: 3002
Date rights surrendered: 2016-08-11

Variety Description

Varieties used for comparison: 'Bartwentynine' and 'Barten'

Summary: 'Barthirtytwo' has a narrow upright growth habit while it is upright-bushy in the reference varieties. The plant height of 'Barthirtytwo' is shorter than that of 'Barten'. 'Barthirtytwo' has a narrower plant than the reference varieties. The leaf of 'Barthirtytwo' is shorter and narrower than that of 'Barten'. 'Barthirtytwo' has a narrower cyme than the reference varieties. 'Barthirtytwo' has fewer florets than the reference varieties. The main flower colour of 'Barthirtytwo' is white while it is violet in 'Barten'.


PLANT: perennial, narrow upright growth habit, begins flowering in midseason

LEAF: lanceolate shape, no glandular stickiness, very sparse to no pubescence on upper and lower side, medium green

CYME: domed shape, single
FLORET: round shape, one colour, white on the upper and lower side

Origin & Breeding History: 'Barthirtytwo' was discovered in Aalsmeer, The Netherlands in 1995 by seedling selection as a product of a planned breeding program. The cross of female parent with the male parent 94.7 took place in 1994. Selection criteria included dwarf growth habit and suitability for potting production.

Tests & Trials: Tests and trials were conducted during the summer of 2006 in Langley, British Columbia. Trials consisted of 25 plants of each variety individually grown in 1 gallon pots outdoors. Observations and measurements were taken from 10 plants of each variety. Colour determinations were done using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Barthirtytwo' with reference varieties 'Bartwentynine' and 'Barten'

Plant height (cm)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
mean 24.8 25.9 32.0
std. deviation 0.59 0.46 0.82

Plant width (cm)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
mean 11.8 24.0 25.0
std. deviation 0.86 0.78 1.12

Leaf length (cm)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
mean 5.7 5.3 8.1
std. deviation 0.16 0.21 0.57

Leaf width (cm)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
mean 2.8 2.3 4.2
std. deviation 0.08 0.14 1.13

Number of florets (count)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
mean 136 245 185
std. deviation 9.4 3.8 7.6

Cyme diameter (cm)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
mean 13.0 17.6 25.8
std. deviation 0.82 0.52 1.38

Petal colour (RHS)

  'Barthirtytwo' 'Bartwentynine' 'Barten'
upper side apical zone 155C 155D N81B
upper side basal zone 155C 155D 155D
lower side apical zone 155C 155D 155D
lower side basal zone 155C 155D N81D

Click on image for larger view
Phlox: 'Barthirtytwo' (right) with reference variety 'Barten' (left)

Click on image for larger view
Phlox: 'Barthirtytwo' (right) with reference variety 'Bartwentynine' (left)

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