Denomination: 'Kielowasky'
Previously Proposed Denomination: 'Butterfly Blue'
Trade name: Waterfall Sky Blue
Botanical Name: Lobelia erinus
Applicant/Holder: Kieft Bloemzaden B.V.
Elbaweg 35
1607 MN
Breeder: Henry Lommerse, Mariahout-Laarbeek, Netherlands
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2004-08-16
Application Number: 04-4328
Date abandoned: 2009-10-31

Variety Description

Variety used for comparison: 'Loboudtis' (Laguna Sky Blue)

Summary: 'Butterfly Blue' has a slightly larger plant than 'Loboudtis'. The peduncle of 'Butterfly Blue' is slightly longer than 'Loboudtis'. 'Butterfly Blue' has a larger corolla diameter than 'Loboudtis'. The flower of 'Butterfly Blue' is a slightly darker violet blue than 'Loboudtis'.


PLANT: vegetatively propagated annual, spreading/trailing growth habit, medium green stem, absent or very sparse pubescence on the stem

LEAF: arranged alternately, simple type, linear to elliptic in shape, acute apex, attenuate base, serrate margin, medium to dark green, no variegation present, no petiole

INFLORESCENCE: raceme type, peduncle present, flowers almost continuously early in the season for a long amount of time
FLOWER: simple type, positioned axillary, erect attitude facing outward
COROLLA: five lobes partially fused, medium size, bilabiate shape, violet blue inner side, violet blue (RHS 95C/96B) inner side of throat, violet blue outer side, violet blue (RHS 97A) outer side of throat

Origin & Breeding History: The new cultivar was developed from a half-sib cross, KA-99-4/6, between two unnamed parental lines of Lobelia during 1998 in Mariahout-Laarbeek, The Netherlands. The F1 seedlings were grown out in 1999 and evaluated over several years for flower colour, flower size and trailing habit. In 2003, the new variety was selected based on ease of propagation and flower colour.

Tests & Trials: Trials were conducted during the summer of 2006 in Oxford Station, Ontario. Trials consisted of 15 plants of each variety individually grown in 10cm pots in a polyhouse. Plants were spaced 30 cm apart. Observations and measurements were taken on 10 plants of each variety. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Kielowasky' with reference variety 'Loboudtis'

Plant height (cm)

  'Kielowasky' 'Loboudtis'
mean 13.17 11.00
std. deviation 2.47 2.00

Plant width (cm)

  'Kielowasky' 'Loboudtis'
mean 29.50 26.29
std. deviation 2.43 1.98

Peduncle length (cm)

  'Kielowasky' 'Loboudtis'
mean 22.67 17.43
std. deviation 2.02 3.34

Corolla diameter (mm)

  'Kielowasky' 'Loboudtis'
mean 15.29 13.14
std. deviation 1.80 0.90

Flower colour (RHS)

  'Kielowasky' 'Loboudtis'
inner side of corolla 95C/96B 96C/D
outer side of corolla 97A 97A/B

Click on image for larger view
Lobelia: 'Butterfly Blue' (left) with reference variety 'Loboudtis' (right)

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