Russian Sage

Denomination: 'CrazyBlue'
Botanical Name: Perovskia atriplicifolia
Applicant/Holder: Ball Horticultural Company
622 Town Road
West Chicago, Illinois
United States of America
Breeder: Christa Kievit, Netherlands
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2013-05-23
Application Number: 13-8048
Grant of Rights Date: 2015-12-14
Certificate Number: 5152
Grant of Rights Termination Date: 2035-12-14

Variety Description

Variety used for comparison: 'Lisslitt' (Lacey Blue)

Summary: The plants of 'CrazyBlue' are taller with longer shoot internodes and longer flowering stems than those of 'Lisslitt'. The incisions along the margin of the leaf blade of 'CrazyBlue' are of medium depth while those of 'Lisslitt' are deep. The calyx of 'CrazyBlue' has dense pubescence whereas the calyx of 'Lisslitt' has very dense pubescence. The inner side of the corolla of 'Crazy Blue' is darker violet blue than the corolla of 'Lisslitt'.


PLANT: upright growth habit, medium intensity of green colour of foliage, medium intensity of grey tinge of foliage, open density at full flowering
OUTER FLOWERING STEM: semi-erect attitude at full flowering
FLOWERING STEM: medium to thick at middle third, light green, strong rigidity of basal parts, 16 to 22 lateral flowering branches on main stem, medium density of flowers
SPIKE: medium number of vertillicasters, medium number of flowers per vertillicaster

LEAF BLADE: simple type, opposite arrangement on stem, irregularly dissected incisions of margin, medium depth of incisions of margin, many incisions of margin, ovate shape, obtuse apex, attenuate base

CALYX: purplish, dense pubescence
COROLLA: inner side is violet blue (RHS 94B)
FLOWERING TIME: begins mid-season, long

Origin & Breeding History: 'CrazyBlue' originated from an open pollination conducted in Hem, the Netherlands in September 2009. The cross was made between uncoded Perovskia atriplicifolia species plants. The selection of 'CrazyBlue' was made in August 2010 based on its mounding growth habit and its cross over branching. Asexual propagation of 'CrazyBlue' has since been conducted from cuttings.

Tests & Trials: The comparative trial for 'CrazyBlue' was conducted in a polyhouse in the summer of 2014 at BioFlora Inc. in St. Thomas, Ontario. The trial included 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and planted into 4.4 liter containers on May 12, 2014. Observations and measurements were taken from 10 plants or parts of plants of each variety on July 11, 2014. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'CrazyBlue' with reference variety 'Lisslitt'

Plant height (cm)

  'CrazyBlue' 'Lisslitt'
mean 79.9 59.3
std. deviation 6.74 6.40

Shoot internode length (cm)

  'CrazyBlue' 'Lisslitt'
mean 5.1 3.8
std. deviation 0.30 0.31

Flowering stem length, from lowest lateral flowering branch to top (cm)

  'CrazyBlue' 'Lisslitt'
mean 64.2 45.3
std. deviation 5.70 4.04

Colour of corolla (RHS)

  'CrazyBlue' 'Lisslitt'
inner side 94B 94C

Click on image for larger view
Russian Sage: 'CrazyBlue' (left) with reference variety 'Lisslitt' (right)

Click on image for larger view
Russian Sage: 'CrazyBlue' (left) with reference variety 'Lisslitt' (right)

Click on image for larger view
Russian Sage: 'CrazyBlue' (left) with reference variety 'Lisslitt' (right)

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