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Denomination: 'Lemonjade'
Botanical Name: Sedum
Applicant/Holder: Walters Gardens, Inc.
1992 96th Avenue
P.O. Box 137
Zeeland, Michigan
United States of America
Breeder: Kevin A. Hurd, Fairfax, 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: 2014-01-22
Application Number: 14-8184
Grant of Rights Date: 2016-09-08
Certificate Number: 5334
Grant of Rights Termination Date: 2036-09-08

Variety Description

Variety used for comparison: 'Iceberg'

Summary: The plants of 'Lemonjade' are upright-bushy to bushy-rounded and wider than those of 'Iceberg', which are narrow upright to upright-bushy. The stem of 'Lemonjade' is purple with a medium intensity of anthocyanin colouration while that of 'Iceberg' is light green with an absent or very weak intensity of anthocyanin colouration. The leaf blade of 'Lemonjade' is smaller than that of 'Iceberg'. The upper side of the leaf blade of 'Lemonjade' is brown green to light green whereas the leaf blade of 'Iceberg' is light green. In the fall, the upper side of the leaf blade of 'Lemonjade' has a very weak to weak intensity of anthocyanin colouration along the mid-rib and margin whereas the leaf blade of 'Iceberg' has no anthocyanin colouration. The petal of 'Lemonjade' is absent to very small, reduced in size to a raised ridge and yellowish white whereas the petal of 'Iceberg' is small and white.


PLANT: vegetatively propagated perennial, upright-bushy to bushy-rounded growth habit, medium degree of branching
STEM: purple, medium intensity of anthocyanin colouration, weak glaucosity, absent or very sparse pubescence, medium thickness, smooth

LEAF: opposite arrangement along stem, simple type, elliptic to ovate shape, acute apex, obtuse base, dentate margin, no variegation, no petiole
LEAF BLADE (UPPER SIDE): absent or very sparse pubescence, weak glaucosity, brown green to light green (RHS 138B-C), very weak anthocyanin colouration along midrib and margin in fall
LEAF BLADE (LOWER SIDE): absent or very sparse pubescence

FLOWERING PERIOD: late in the season, medium to long
INFLORESCENCE: cyme type, terminal position only, erect attitude
FLOWER: petal arrangement is touching with a raised ridge, very few petals (almost apetalous)
PETAL: very small, less than 1mm long, upper and lower side is white (more yellow than RHS 155A)

Origin & Breeding History: 'Lemonjade' originated from a naturally occuring sport mutation at Walter Gardens, Inc. in Zeeland, Michigan, USA in August 2008. The plant from which the sport was taken resulted from a cross involving the variety 'Sheila McQueen' as the female parent, and an unknown male parent. 'Lemonjade' was initially selected as part of a breeding program to produce plants with a compact growth habit and very light yellow flowers and was further evaluated in the spring of 2010.

Tests & Trials: The comparative trial for 'Lemonjade' was conducted outdoors during the summer of 2015 at Variety Rights Management in Oxford Station, Ontario. The trial included a total of 15 plants each of the candidate and reference variety. All plants were grown in 22 cm pots spaced 45 cm apart. Observations and measurements were taken from 10 plants, or parts of plants, of each variety the week of September 7, 2015. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Lemonjade' with reference variety 'Iceberg'

Plant width (cm)

  'Lemonjade' 'Iceberg'
mean 31.2 27.0
std. deviation 1.47 3.58

Leaf blade length (cm)

  'Lemonjade' 'Iceberg'
mean 5.5 6.6
std. deviation 0.49 0.52

Leaf blade width (cm)

  'Lemonjade' 'Iceberg'
mean 2.4 4.4
std. deviation 0.34 0.23

Colour of leaf blade (RHS)

  'Lemonjade' 'Iceberg'
upper side 138B-C N144C-D

Colour of petal (RHS)

  'Lemonjade' 'Iceberg'
inner side more yellow than 155A 155C

Click on image for larger view
Sedum: 'Lemonjade' (left) with reference variety 'Iceberg' (right)

Click on image for larger view
Sedum: 'Lemonjade' (left) with reference variety 'Iceberg' (right)

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