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Black Jack


Denomination: 'Black Jack'
Botanical Name: Sedum
Applicant/Holder: Walters Gardens, Inc.
1992 96th Avenue
P.O. Box 137
Zeeland, Michigan
United States of America
Breeder: John D. Walters, Walters Gardens, Inc., Zeeland, United States of America
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Tel: 613-258-9015
Application Date: 2005-04-07
Application Number: 05-4700
Date Withdrawn: 2009-11-02

Variety Description

Variety used for comparison: 'Matrona'

Summary: 'Black Jack' has stronger anthocyanin colouration in the stem and leaf than 'Matrona'. The flower bud of 'Black Jack' is darker purple red than 'Matrona'. 'Black Jack' has flowers that are pink/purple in colour while they are pink in 'Matrona'.


PLANT: vegetatively propagated perennial, upright-bushy growth habit, medium degree of branching
STEM: purple, very strong anthocyanin colouration

LEAF: opposite whorled arrangement, simple type, ovate, acute apex, dentate margin, purple, very strong anthocyanin colouration, no variegation, no petiole

INFLORESCENCE: one medium to late flowering period, corymb to cyme type, terminal position, erect attitude,
FLOWER: dark purple red bud colour, blue pink/light blue pink

Origin & Breeding History: 'Black Jack' was discovered as a sport of the Sedum variety 'Matrona' at Walters Gardens Inc., Zeeland, Michigan, USA in 2002. Selection criteria included foliage colour.

Tests & Trials: Trials were conducted during the summer of 2007 in Oxford Station, Ontario. Twenty plants of each variety were individually grown in 15 cm pots in a poly house. Plants were spaced 45 cm apart.

Comparison tables for 'Black Jack' with reference variety 'Matrona'

Leaf colour (RHS)

  'Black Jack' 'Matrona'
main N187A/187A N189A/B

Flower colour(RHS)

  'Black Jack' 'Matrona'
bud 60A 60D
opened N66D/65C 65B/D

Click on image for larger view
Black Jack
Sedum: 'Black Jack' (left) with reference variety 'Matrona' (right)

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