Green Jewel

Coneflower

Denomination: 'Green Jewel'
Botanical Name: Echinacea purpurea
Applicant/Holder: Oudolf, Petrus Hendricus
Broekstraat 17, 6999 De
Hummelo
Netherlands
Breeder: Petrus Hendricus Oudolf, Hummelo, Netherlands
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Canada
Tel: 613-258-9015
Application Date: 2006-11-28
Application Number: 06-5680
Grant of Rights Date: 2010-12-13
Certificate Number: 3985
Grant of Rights Termination Date: 2028-12-13

Variety Description

Variety used for comparison: 'Green Envy'

Summary: The plants and leaves of 'Green Jewel' are smaller than those of 'Green Envy'. 'Green Jewel' has flowers with a smaller diameter than 'Green Envy'. The flowers of 'Green Jewel' have more ray florets than 'Green Envy'. 'Green Jewel' has smaller ray florets than 'Green Envy'. The ray florets of 'Green Jewel' are light green and fade to light yellow brown with maturity while those of 'Green Envy' are light green and blue pink. 'Green Jewel' has dark green and light green disc florets while 'Green Envy' has grey and orange brown disc florets. The discs of 'Green Jewel' are smaller than those of 'Green Envy'.

Description:

PLANT: vegetatively propagated, perennial, narrow upright to upright bushy growth habit, sparse to medium degree of branching
STEM: dark green, medium to dense pubescence

LEAF BLADE: alternate arrangement, simple, ovate and lanceolate, acute apex, attenuate base, serrate margin, dark green on upper side, no variegation, no petiole

FLOWER: one flowering period, early flowering time, medium to long flowering period, head inflorescence, both terminal and axillary position, erect attitude
RAY FLORET: medium number, reflexing to straight longitudinal axis, light green (RHS 144D-145B/C) fading to light yellow brown (RHS 160D) with maturity on upper side
DISC: present, dark green (RHS 144A) and light green (RHS 145C) florets

Origin & Breeding History: 'Green Jewel' originated as a chance seedling in the nursery of Mr. P.H. Oudolf in Hummelo, The Netherlands, in 2004. The new variety was discovered as a chance seeding in a nursery block of un-named Echinacea purpurea plants that had been allowed to set seed in 2003. 'Green Jewel' was selected based on improved form and floral traits.

Tests & Trials: Trials for 'Green Jewel' were conducted during the summer of 2009, in Oxford Station, Ontario. Fifteen plants each of the candidate and reference varieties were grown in 15 cm pots spaced 60 cm apart in a polyhouse. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.


Comparison tables for 'Green Jewel' with reference variety 'Green Envy'

Plant height (cm)

  'Green Jewel' 'Green Envy'
mean 71.83 84.67
std. deviation 5.64 4.59

Plant width (cm)

  'Green Jewel' 'Green Envy'
mean 36.13 47.00
std. deviation 4.90 3.96

Leaf length (cm)

  'Green Jewel' 'Green Envy'
mean 14.29 16.14
std. deviation 1.60 1.07

Leaf width (cm)

  'Green Jewel' 'Green Envy'
mean 6.19 8.21
std. deviation 0.80 0.70

Flower diameter (cm)

  'Green Jewel' 'Green Envy'
mean 8.34 11.06
std. deviation 1.35 1.27

Number of ray florets

  'Green Jewel' 'Green Envy'
mean 22.00 17.20
std. deviation 1.41 2.68

Ray floret length (cm)

  'Green Jewel' 'Green Envy'
mean 3.42 5.12
std. deviation 0.29 0.46

Ray floret width (cm)

  'Green Jewel' 'Green Envy'
mean 0.76 1.02
std. deviation 0.18 0.12

Colour of ray floret (RHS)

  'Green Jewel' 'Green Envy'
upper side 114D to 145B/C fading to 160D with maturity 145B/C and 67B/C

Disc: diameter (cm)

  'Green Jewel' 'Green Envy'
mean 2.65 3.73
std. deviation 0.37 0.55

Colour of disc floret (RHS)

  'Green Jewel' 'Green Envy'
mean 144A and 145C 197A and N172B

Click on image for larger view
Green Jewel
Coneflower: 'Green Jewel' (left) with reference variety 'Green Envy' (right)

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