Denomination: 'Barthirtysix'
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: 06-5424
Grant of Rights Date: 2007-11-22
Certificate Number: 3006
Date rights surrendered: 2014-11-17

Variety Description

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

Summary: 'Barthirtysix' has a narrower growth habit than the reference varieties. The plant height of 'Barthirtysix' is taller than the reference varieties. 'Barthirtysix' has a narrower plant than that of 'Bartwelve'. The leaf of 'Barthirtysix' is slightly longer than the reference varieties. 'Barthirtysix' has a wider leaf than that of 'Bartwelve'. 'Barthirtysix' has more florets than the reference varieties. The cyme of 'Barthirtysix' is longer than that of 'Barten'. The main flower colour in 'Barthirtysix' is dark pink red while it is violet in the reference varieties.


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: pyramid shape, single
FLORET: round shape, one colour, dark pink red to purple red on the upper side, dark pink red on lower side

Origin & Breeding History: 'Barthirtysix' 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 94.5 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 'Barthirtysix' with reference varieties 'Bartwelve' and 'Barten'

Plant height (cm)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 59.0 34.6 32.0
std. deviation 2.79 1.51 0.82

Plant width (cm)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 22.6 33.0 25.0
std. deviation 2.59 1.25 1.12

Leaf length (cm)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 10.5 8.0 8.1
std. deviation 0.41 0.41 0.57

Leaf width (cm)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 4.5 2.4 4.2
std. deviation 0.41 0.09 1.13

Number of florets (count)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 300 192 185
std. deviation 29.1 13.8 7.6

Cyme length (cm)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 36.0 30.0 16.0
std. deviation 3.46 1.70 0.49

Cyme diameter (cm)

  'Barthirtysix' 'Bartwelve' 'Barten'
mean 22.6 25.0 25.8
std. deviation 2.63 0.82 1.38

Petal colour (RHS)

  'Barthirtysix' 'Bartwelve' 'Barten'
upper side apical zone 51A N78B N81B
upper side basal zone N66B N74A 155D
lower side apical zone 51A N78C 155D
lower side basal zone 51A N78C N81D

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

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

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