Janed Gold


Denomination: 'Janed Gold'
Botanical Name: Thuja occidentalis
Applicant/Holder: Kubik, Edward
Janowice UL.
Miodowa 15, 43-512
Breeder: Edward Kubik, Bestwina, Poland
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2010-06-21
Application Number: 10-7011
Grant of Rights Date: 2012-12-14
Certificate Number: 4450
Grant of Rights Termination Date: 2030-12-14

Variety Description

Varieties used for comparison: 'Smaragd' (Emerald Cedar) and 'Yellow Ribbon'

Summary: The plants of 'Janed Gold' are shorter in height than the plants of the reference varieties and narrower than the plants of 'Yellow Ribbon'. The plants of 'Janed Gold' are in the yellow green colour group while the plants of 'Smaragd' are in the green colour group. The plants of 'Janed Gold' have dense branching while the plants of 'Smaragd' have medium branching density. The first order branches of 'Janed Gold' are shorter in length than the first order branches of the reference varieties. The second order branchlets of 'Janed Gold' are medium in density while they are dense for 'Yellow Ribbon'. The upper side of the spray of 'Janed Gold' is brown green overall with light green on the upper part and yellow green on the tips while the upper side of the spray of 'Smaragd' is brown green and the upper side of the spray of 'Yellow Ribbon' is light green with yellow on the tips.


PLANT: narrow pyramidal shape, absent or very weak fragrance, dense foliage, yellow green colour group
BRANCH OF FIRST ORDER: dense, erect attitude, medium stiffness, stem brown
BRANCHLET OF FIRST ORDER (SPRAY): dense, stem medium green with red-brown at base and absent or very weak anthocyanin colouration

LEAF: opposite arrangement around axis of branchlet, decussate, scale-like, appressed, acute apex, entire margin, flat with a glandular protrusion at the center, upper side of spray brown green (RHS 138A) with light green (RHS 144C) on upper part and yellow green (RHS 154B) at tips.

Origin & Breeding History: The variety 'Janed Gold' was discovered in 1999 in Janowice, Poland. The new variety was discovered as a chance seedling from an open pollinated cross with the female parent 'Smaragd' and an unknown male parent. The new variety was selected based on its gold coloured needles. Asexual reproduction by cuttings was first conducted in 2000 in Janowice, Poland.

Tests & Trials: Trials for 'Janed Gold' were conducted in an outdoor irrigated container trial during the summer of 2011 in St. Thomas, Ontario. The trial included a total of 12 plants of the candidate variety, 8 plants of the reference variety 'Smaragd' and 11 plants of the reference variety 'Yellow Ribbon'. All plants were grown from bare root plants which were planted into 1 gallon containers and then transplanted into 3 gallon containers in the spring of 2011. Observations and measurements were taken on July 12, 2011. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Janed Gold' with reference varieties 'Smaragd' and 'Yellow Ribbon'

Plant height (cm)

  'Janed Gold' 'Smaragd' 'Yellow Ribbon'
mean 49.1 63.9 55.0
std. deviation 2.41 3.68 3.18

Plant width (cm)

  'Janed Gold' 'Smaragd' 'Yellow Ribbon'
mean 20.9 23.4 38.3
std. deviation 0.82 2.35 2.75

Length of branches of first order (cm)

  'Janed Gold' 'Smaragd' 'Yellow Ribbon'
mean 17.0 21.4 22.4
std. deviation 1.13 1.26 2.25

Main colour of spray in summer (RHS)

  'Janed Gold' 'Smaragd' 'Yellow Ribbon'
upper side 138A, upper part 144C with 154B at tips 138A 144C with 3B at tips, 138A at base

Click on image for larger view
Janed Gold
Cedar: 'Janed Gold' (left) with reference varieties 'Smaragd' (centre) and 'Yellow Ribbon' (right)

Click on image for larger view
Janed Gold
Cedar: 'Janed Gold' (left) with reference varieties 'Smaragd' (centre) and 'Yellow Ribbon' (right)

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