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Denomination: 'SMSYPRZ1'
Trade name: Rhythm & Bloom Purple
Botanical Name: Syringa
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: 519-317-7511
Application Date: 2014-07-18
Application Number: 14-8396
Date Withdrawn: 2020-01-15

Variety Description

Varieties used for comparison: 'Penda' (Bloomerang Purple) and 'Pabilin'

Summary: The plants of 'SMSYPRZ1' are shorter than those of both reference varieties. The leaf margin of 'SMSYPRZ1' has a medium degree of undulation whereas the leaf margin of 'Pabilin' has a strong degree of undulation. 'SMSYPRZ1' has a light blue violet flower bud whereas 'Penda' has a violet and pink flower bud and 'Pabilin' has a violet flower bud. The flower of 'SMSYPRZ1' has a medium strength of fragrance whereas both reference varieties have a strong fragrance. The flowers of 'SMSYPRZ1' have few corolla lobes while flowers of the reference varieties have a medium number of corolla lobes. The inner side of the corolla lobe of 'SMSYPRZ1' is light blue violet with white whereas the inner side of the corolla lobe of 'Penda' is more pink than violet and that of the corolla lobe of 'Pabilin' is light blue violet with a darker violet near centre.


PLANT: upright to spreading growth habit, medium density branching, few inflorescences
ONE-YEAR-OLD SHOOT: grey brown

LEAF: simple, absent or very shallow sinus, medium ovate, cuneate base, medium undulation of margin, medium green on upper side

FLOWER BUD: light blue violet (RHS 76A)
INFLORESCENCE: semi-upright attitude, conic, medium density of flowers
FLOWER: medium strength fragrance, single type, medium distance between whorls
COROLLA LOBE: few, semi-erect attitude, broad elliptic, absent to medium degree of undulation, medium incurving of margin, acute apex, inner side is light blue violet (RHS 76D) with white (RHS NN155C)
COROLLA TUBE: outer side is violet (RHS 76A-76B)
ANTHER: purple

Origin & Breeding History: 'SMSYPRZ1' originated from an open pollinated cross with the female parent 'Josee' and an unknown male parent. The cross was conducted by the breeder, Timothy D. Wood, an employee of Spring Meadow Nursery, Inc. in Grand Haven, Michigan, USA in May 2004. 'SMSYPRZ1' was selected in May of 2007 based on flower colour and re-blooming. Further asexual reproduction of the variety 'SMSYPRZ1' was conducted in June 2007 in Grand Haven, Michigan, USA.

Tests & Trials: The comparative trial for 'SMSYPRZ1' was conducted in a polyhouse during the spring of 2018 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 10 shrubs each of the candidate and reference variety. Rooted cuttings were transplanted into 7.6 litre containers on July 26, 2017. Observations and measurements were taken from 10 plants of each variety on April 28, 2018. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart. Mean differences are significant at the 5% probability level based on a paired student's t-test.

Comparison tables for 'SMSYPRZ1' with reference varieties 'Penda' and 'Pabilin'

Plant height (cm)

  'SMSYPRZ1' 'Penda' 'Pabilin'
mean 20.8 45.1 28.5
std. deviation 4.23 7.02 3.87

Colour of flower bud (RHS)

  'SMSYPRZ1' 'Penda' 'Pabilin'
main 76A N77B and N78C 75A

Colour of inner side of corolla lobe

  'SMSYPRZ1' 'Penda' 'Pabilin'
main 76D and NN155C more pink than 75A 76C, darker near centre 75A

Click on image for larger view
Lilac: 'SMSYPRZ1' (left) with reference varieties 'Palibin' (centre) and 'Penda' (right)

Click on image for larger view
Lilac: 'SMSYPRZ1' (left) with reference varieties 'Palibin' (centre) and 'Penda' (right)

Click on image for larger view
Lilac: 'SMSYPRZ1' (left) with reference varieties 'Palibin' (centre) and 'Penda' (right)

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