White Satin

Lavatera

Denomination: 'White Satin'
Botanical Name: Lavatera
Applicant/Holder: Lommerse, Jan
T Hoogtlaan 15
2211 AN
Noordwijkerhout
Netherlands
Breeder: Jan Lommerse, Noordwijkerhout, 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: 1999-11-25
Application Number: 99-1878
Grant of Rights Date: 2003-11-25
Certificate Number: 1656
Date rights revoked: 2016-11-25

Variety Description

Variety used for comparison: 'Barnsley'

Summary: 'White Satin' produces a bigger plant than 'Barnsley'. The anthocyanin colouration in the stem is absent to very weak in 'White Satin' while it is medium to strong in 'Barnsley'. 'White Satin' has a ovate to orbicular shaped leaf with palmate lobing that is wider than the ovate shaped leaf with less lobing of 'Barnsley'. In 'White Satin' the shape of the leaf apex is acute and the leaf base is truncate, while in 'Barnsley' the shape of the leaf apex is acute to obtuse, and the base is obtuse in shape. The leaf of 'White Satin' is a dark green while in 'Barnsley' it is a medium green. The inflorescence of 'White Satin' is longer than 'Barnsley'. The flower petals of 'White Satin' are overlapping while they are touching in 'Barnsley'. The flower colour of 'White Satin' is a white with a very light pink secondary colour along the base of the petals, while 'Barnsley' has a white colour with a prominent darker pink secondary colour along the base when it first fully opens. The flower colour of 'Barnsley' fades to pink with age while 'White Satin' does not.

Description:

'White Satin' is a vegetatively propagated perennial Lavatera hybrid with an upright bushy growth habit that has medium to dense degree of branching. The stem has a dark green colour with a smooth shape, medium thickness, sparse to medium pubescence, and no anthocyanin colouration, or glaucosity. The leaf type is simple, dark green in colour, and arranged in an opposite fashion. The leaf blade is ovate to orbicular in shape with an acute shaped apex, a truncate shaped base, sparse in pubescence on the upper and lower sides, and has no glaucosity, or variegation. The margin of the leaf blade is crenate to dentate. The leaf has a petiole which is absent to very weak in anthocyanin colouration.

'White Satin' has a raceme inflorescence type that starts flowering mid season almost continuously for a moderate amount of time. The flowers are erect in attitude and positioned both terminally and axillary on the inflorescence. The petals of the flower are very few in number with a overlapping arrangement. The shape of the petal is obovate with an emarginate shaped apex, that is absent or very sparse in pubescence on the upper side. The colour of the flower petals is white with a very light pink secondary colour along the base.

Origin & Breeding History: 'White Satin' was selected from a seedling population of a controlled cross between the female parent a Lavatera cachemiriana and a Lavatera thuringiaca as the male parent in 1995 at Hummelo, The Netherlands. The selection criteria were hardiness, improved floral and foliage traits.

Tests & Trials: Conducted at Oxford Station, Ontario in the summer of 2001. Ten plants of each variety grown under field conditions, with plants spaced 0.5 metres apart within the row, and each row space 1 metre apart.


Comparison tables for 'White Satin' with reference variety 'Barnsley'

Plant height (cm)

  'White Satin' 'Barnsley'
mean 107.77 78.50
std. deviation 17.45 9.91

Plant width (cm)

  'White Satin' 'Barnsley'
mean 71.13 53.06
std. deviation 6.96 5.42

Leaf blade width (cm)

  'White Satin' 'Barnsley'
mean 4.81 4.64
std. deviation 0.57 0.42

Inflorescence length (cm)

  'White Satin' 'Barnsley'
mean 53.21 38.09
std. deviation 5.83 5.26

Flower petal colour (RHS)

  'White Satin' 'Barnsley'
primary white white/fades to 62B after opening
secondary 62C/D 57C
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