Black Jack

Sedum

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'.

Description:

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)

Flower colour(RHS)

Click on image for larger view

Sedum: 'Black Jack' (left) with reference variety 'Matrona' (right)