BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct
cultivar of Hosta plant, botanically known as Hosta hybrid and hereinafter referred to by the name 'Orange Star'.
The new Hosta plant is a naturally-occurring whole plant
mutation of the Hosta hybrid 'June Fever, disclosed in
U.S. Plant Pat. No. 15,340. The new Hosta plant was
discovered and selected by the Inventor in a controlled
outdoor nursery environment in Barneveld, The
Netherlands in May, 2006.
Asexual reproduction of the new Hosta plant by divisions
in a controlled outdoor nursery environment in
Barneveld, The Netherlands since August, 2006, has shown
that the unique features of this new Hosta plant are
stable and reproduced true to type in successive
BRIEF SUMMARY OF THE INVENTION
Plants of the new Hosta have not been observed under all
possible environmental conditions. The phenotype may
vary somewhat with variations in environment and
cultural practices such as temperature and light
intensity without, however, any variance in genotype.
The following traits have been repeatedly observed and
are determined to be the unique characteristics of 'Orange Star'. These characteristics in combination
distinguish 'Orange Star' as a new and distinct cultivar
of Hosta Plant:
1. Outwardly spreading foliage with upright
2. Thick dark green and pale yellow to white
3. Light violet to white-colored flowers that
are positioned above the foliar plane on strong scapes.
4. Good garden performance.
Plants of the new Hosta differ primarily from plants of
the parent, 'June Fever , in the following
1. Plants of the new Hosta grow slower than
plants of 'June Fever '.
2. Leaves of plants of the new Hosta are thicker
than leaves of plants of 'June Fever '.
3. Under low light conditions, leaves of plants
of the new Hosta maintain their variegation whereas
leaves of plants of 'June Fever ' loose their
Plants of the new Hosta can be compared to plants of 'Sweet Innocence, not patented. Plants of the new Hosta and 'Sweet Innocence' differ primarily in leaf
coloration as plants of 'Sweet Innocence' have light
green and pale yellow variegated leaves.
BRIEF DESCRIPTION OF THE PHOTOGRAPHS
The accompanying colored photographs illustrate the
overall appearance of the new Hosta plant, showing the
colors as true as it is reasonably possible to obtain in
colored reproductions of this type. Colors in the
photographs may differ slightly from the color values
cited in the DETAILED BOTANICAL DESCRIPTION which
accurately describe the colors of the new Hosta plant.
The photograph on the first sheet comprises a side
perspective view of a typical flowering plant of 'Orange Star' grown in a container.
The photograph on the second sheet is a close-up view of
typical flowers and leaves of 'Orange Star'.
DETAILED BOTANICAL DESCRIPTION
The aforementioned photographs and following
observations, measurements and values describe plants
grown during the late summer in two-liter containers in
an outdoor nursery in Barneveld, The Netherlands and
under commercial practice. Plants were two years old
when the photographs and description were taken. In the
following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition,
except where general terms of ordinary dictionary
significance are used.
+ Botanical Classification: Hosta hybrid 'Orange Star'.
+ Parentage: Naturally-occurring whole plant
mutation of the Hosta hybrid 'June Fever , disclosed in
U.S. Plant Pat. No. 15,340.
- Type: By divisions.
- Root description: Medium in thickness, fibrous;
creamy white in color.
- Rooting habit: Moderate branching; moderately
- Plant form/habit: Herbaceous flowering perennial
plant; mounded plant form with outwardly spreading
foliage and upright flower scapes; flowering stems and
leaves basal; moderately vigorous growth habit; light
violet to white-colored flowers that are positioned
above the foliar plane on strong scapes.
- Growth rate: Moderately fast; about one year is
required to produce fully-grown flowering plants.
- Plant height (soil level to top of foliar
plane): About 20 cm (7.9 in.) .
- Plant height (soil level to top of
inflorescences): About 25 cm (10 in.) to 30 cm (11.8 in.) .
- Plant width (spread): About 30 cm (11.8 in.) .
- Arrangement/form: Leaves basal, simple,
generally symmetrical, thick and long-persisting.
- Leaf length: About 10 cm (4 in.) to 13 cm (5 in.) .
- Leaf width: About 5 cm (2 in.) to 7 cm (2.8 in.) .
- Shape: Cordate.
- Apex: Acuminate.
- Base: Rounded.
- Margin: Entire.
- Texture, upper and lower surfaces: Smooth,
glabrous; leathery; moderately rugose.
- Venation pattern: Pinnate, arcuate.
- Color: Developing leaves, upper surface: Center,
close to 144B; towards the margins, close to 137A.
Developing leaves, lower surface: Center, close to 144C;
towards the margins, close to 137C. Fully expanded
leaves, upper surface: Center, close to 10D to 155A;
towards the margins, close to 147A; venation, similar to
surface colors. Fully expanded leaves, lower surface:
Center, close to 155A to 159D; towards the margins,
close to 137A; venation, similar to surface colors.
- Petiole length: About 7 cm (2.8 in.) to 12 cm (4.7 in.) .
- Petiole diameter: About 5 mm to 7 mm.
- Petiole texture, upper and lower
surfaces: Smooth, glabrous.
- Petiole color, upper surface: Close to 144A;
towards the edges, close to 137A.
- Petiole color, lower surface: Close to 144B.
- Flower type/habit: Single campanulate flowers
with fused perianth arranged on terminal racemes;
flowers face mostly outwardly; panicles roughly conical
in shape; freely flowering habit.
- Fragrance: Moderately fragrant; sweet, pleasant.
- Natural flowering season: Flowering recurrent
during July and August in The Netherlands.
- Postproduction longevity: Flowers last about one
week on the plant; flowers not persistent.
- Flower Buds: Height: About 1.0 cm (0.4 in.) to 2.5 cm (1.0 in.) .
Diameter: About 5 mm to 11 mm. Shape: Elliptic. Color:
Close to 146B.
- Inflorescence height: About 8 cm (3.1 in.) to 12 cm (4.7 in.) .
- Inflorescence diameter: About 11 cm (4.3 in.) to 13 cm (5 in.) .
- Flower diameter: About 3 cm (1.2 in.) .
- Flower depth: About 5 cm (2 in.) .
- Perianth: Arrangement: Three interior tepals
arranged in a single whorl surrounded by an outer whorl
of three exterior tepals. Tepal length: About 1.5 cm (0.6 in.) to 2.0 cm (0.8 in.) . Tepal width: About 1.0 cm (0.4 in.) to 1.2 cm (0.5 in.) . Tepal shape:
Ovate. Tepal apex: Acute. Tepal margin: Entire. Tepal
texture, upper and lower surfaces: Smooth, glabrous;
satiny. Tepal color: Developing and fully expanded
petals, upper surface: Close to 85C; towards the base
and margins, close to 85D to N155D. Developing and fully
expanded petals, lower surface: Close to 85D.
- Flower bracts: Quantity: One per flower at the
base of the pedicel. Length: About 1.5 cm (0.6 in.) . Width: About
5 mm. Shape: Ovate. Apex: Acute. Base: Cuneate. Margin:
Entire. Texture, upper and lower surfaces: Smooth,
glabrous. Color, upper and lower surfaces: Close to
160D; towards the margins, close to 146B.
- Peduncles (scapes): Length: About 15 cm (5.9 in.) to 18 cm (7 in.) . Diameter: About 4 mm. Angle: Erect. Strength:
Strong. Texture: Smooth, glabrous. Color: Close to 151A.
- Pedicels: Length: About 8 mm to 10 mm. Diameter:
About 1.5 mm to 2 mm. Strength: Strong. Texture: Smooth,
glabrous. Color: Close to 151A.
- Reproductive organs: Stamens: Quantity per
flower: Typically six; anthers dorsifixed. Filament
length: About 5 cm (2 in.) to 5.5 cm (2.1 in.) . Filament color: Close to
155C. Anther shape: Narrowly oblong. Anther length:
About 4 mm. Anther color: Close to 86B. Pollen amount:
Moderate. Pollen color: Close to 21A. Pistils: Quantity
per flower: One. Stigma shape: Lobed. Stigma color:
Close to 155C. Style length: About 5 cm (2 in.) . Style color:
Close to 145D. Ovary length: About 6 mm. Ovary color:
Close to 154D.
- Seed/Fruit: Seed and fruit development have not
Disease/pest resistance: Plants of the new Hosta have not been noted to be resistant to pathogens
and pests common to Hosta.
Garden performance: Plants of the new Hosta have been observed to have good garden performance and
to tolerate rain, wind and temperatures ranging from
about −30° C. to about 35° C.