Hypericum - Ornamental

Denomination: 'SMHKBF'
Trade name: Blues Festival
Botanical Name: Hypericum kalmianum
Applicant/Holder: Spring Meadow Nursery, Inc.
12601 120th Avenue
Grand Haven, Michigan
United States of America
Breeder: Timothy D. Wood, Spring Lake, United States of America
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2012-09-10
Application Number: 12-7739
Grant of Rights Date: 2016-08-26
Certificate Number: 5306
Grant of Rights Termination Date: 2036-08-26

Variety Description

Variety used for comparison: 'CCF-LPCI' (Blue Velvet)

Summary: The plant of 'SMHKBF' is shorter and narrower with a smaller flower diameter than the plant of 'CCF-LPCI'. The petals of 'SMHKBF' are shorter and narrower than those of 'CCF-LPCI'.


PLANT: bushy rounded compact growth habit, no reddish or brownish colouration of branches or young leaves of current season's growth

LEAF: no variegation, medium green on upper side, convex to flat profile in cross-section, weakly acute to right angled in relation to branch, linear to lanceolate shape, cuneate base, acute apex, absent or very weak pubescence on lower side, no leaf odour when bruised

FLOWER: concave profile in cross-section, petals not touching, no fragrance, yellow (RHS 5A) on upper side of petal
STAMEN: length is equal to length of petal
ANTHER: yellow

BERRY: narrow ovate shape in longitudinal section, circular shape in cross-section, mature ovary grey brown (closest to RHS N199A), seed capsule medium brown (RHS 174A)

Origin & Breeding History: 'SMHKBF' originated from an open pollination of the female parent, 'Very Blue' and an unknown male parent made in the summer of 2007 in Grand Haven, Michigan, USA. The new variety was selected from the resulting progeny in the summer of 2009, based on its growth habit, foliage colour, attractive and numerous flower production, and production characteristics. Asexual reproduction by softwood cuttings was first conducted in July 2009 in Grand Haven, Michigan, USA.

Tests & Trials: The comparative trial for 'SMHKBF' was conducted as an outdoor container trial during the summer of 2015 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 10 plants of the candidate variety and 9 plants of the reference variety. All plants were grown from liners and planted into 13.2 litre containers on July 14, 2013. Observations and measured characteristics were taken from 10 plants, or parts of plants, of the candidate variety, and from 9 plants, or 10 parts of plants, of the reference variety on July 8, 2015. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'SMHKBF' with reference variety 'CCF-LPCI'

Plant height (cm)

mean 33.5 40.3
std. deviation 3.61 2.73

Plant width (cm)

mean 50.6 67.7
std. deviation 4.62 3.24

Flower diameter (cm)

mean 1.7 2.2
std. deviation 0.13 0.17

Petal length (mm)

mean 11.3 16.2
std. deviation 0.95 0.63

Petal width (mm)

mean 7.4 10.4
std. deviation 0.70 0.97

Click on image for larger view
Hypericum - Ornamental: 'SMHKBF' (left) with reference variety 'CCF-LPCI' (right)

Click on image for larger view
Hypericum - Ornamental: 'SMHKBF' (left) with reference variety 'CCF-LPCI' (right)

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