Plants – Herbaceous ornamnental flowering plant – Euphorbia
Plant Patent
2002-09-11
2003-10-21
Campell, Bruce R. (Department: 1661)
Plants
Herbaceous ornamnental flowering plant
Euphorbia
Plant Patent
active
PP014246
ABSTRACT:
Genus: Euphorbia.
Species:
characias.
Denomination: ‘Vanilla Swirl’.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of spurge, a hardy perennial that is grown for its unique foliage and its use as an ornamental landscape plant. The new invention is known botanically as
Euphorbia characias
and will be referred to hereinafter by the cultivar name ‘Vanilla Swirl’.
‘Vanilla Swirl’ was discovered by the inventor in 1998 in Bury St. Dorset, United Kingdom as a self-set seedling found in a cultivated area of the inventor's garden beneath a small group of
Euphorbia characias.
The female or seed parent is presumed to be
Euphorbia characias
and the male or pollen parent is presumed to be
Euphorbia characias.
‘Vanilla Swirl’ was selected by the inventor for its variegated leaves that exhibit green centers and irregular cream-white margins, compact rounded growth habit, bright red stems in spring that fade to pink by summer and consistent variegation of the foliage without reversion to green. Rarely occurring flowers are held on terminal stems and born axial to the leaf joints with two cyathia cupped by two basally fused floral leaves, also called involucres. The margins of the leaves are whitest in spring and become cream-white in summer.
The closest comparison plant is Euphorbia ‘Burrows Silver’ (not patented). ‘Vanilla Swirl’ is distinguishable from ‘Burrows Silver’ by its compact habit, finer foliage, rare flowering, and no reversion to green.
The first asexual reproduction of ‘Vanilla Swirl’ was accomplished by the inventor in Dorset, United Kingdom in 1998. The method used was softwood cuttings. Since that time subsequent generations have been determined stable and true to type.
SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and represent the distinguishing characteristics of the new Euphorbia cultivar. These traits in combination distinguish ‘Vanilla Swirl’ from all other existing varieties of Euphorbia known to the inventor. ‘Vanilla Swirl’ has not been tested under all possible conditions and phenotypic differences may be observed with variations in environmental, climatic, and cultural conditions, however, without any variance in genotype.
1. Euphorbia ‘Vanilla Swirl’ exhibits a compact rounded growth habit.
2. Euphorbia ‘Vanilla Swirl’ exhibits rare flowering.
3. Euphorbia ‘Vanilla Swirl’ exhibits variegated, fine leaves with green centers and irregular cream-white margins that are whitest in spring turning cream-white in summer.
4. Euphorbia ‘Vanilla Swirl’ exhibits bright red stems in spring fading to pink by summer.
5. Euphorbia ‘Vanilla Swirl’ exhibits consistently variegated foliage without reversion to green.
Campell Bruce R.
McCormick Susan B.
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