BACKGROUND OF THE INVENTION
The present invention relates to a
new and distinct cultivar of Hosta, botanically known as a Hosta hybrida,
and hereinafter will be referred to
by its cultivar name 'Raspberry
Sundae'. Hosta is in the family
Hostaceae. The plant is the
culmination of a breeding program
for variegated, red petiole Hosta.
It was bred in Canby, Oregon using
unpatented proprietary parents. The
exact parents are unknown.
Compared to Hosta 'Cherry Berry' (an
unpatented plant), Hosta 'Raspberry
Sundae' has a larger habit, larger
and wider leaves, and darker
petioles and scape. Compared to
other red petiole Hosta, the new
cultivar is variegated with creamy
white centers and green margins
rather than not variegated.
BRIEF SUMMARY OF THE INVENTION
This new cultivar is unique in the
combination of creamy white-centered
foliage with green margins and
strong red petioles and flower
stalks. In the spring the red of the
petioles shows up in the base of the
leaf as well. Hosta 'Raspberry
Sundae' has a compact habit and
attractive violet flowers in late
summer into fall.
This new cultivar has been
reproduced only by asexual
propagation (division and tissue
culture). Each of the progeny
exhibits identical characteristics
to the new cultivar. Asexual
propagation by tissue culture using
standard micropropagation techniques
with lateral shoots as done in
Canby, Oregon, shows that the
foregoing characteristics and
distinctions come true to form and
are established and transmitted
through succeeding propagations. The
present invention has not been
evaluated under all possible
environmental conditions. The
phenotype may vary with variations
in environment without a change in
the genotype of the plant.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 shows a two-year-old plant in
FIG. 2 shows an older flower stalk
in late September.
FIG. 3 shows the maturing seed pods
in late September.
FIG. 4 shows a close up of the
petiole color in late September.
DETAILED PLANT DESCRIPTION
The following is a detailed
description of the new Hosta cultivar based on observations of a
two-year-old specimen grown in the
ground in an open air shade house
with 50% shade in Canby, Oregon in
late September. Canby is Zone 8 on
the USDA Hardiness map. Temperatures
range from a high of 95 degrees F.
in August to 32 degrees F. in
January. Normal rainfall in Canby is
42.8 inches per year. The color
descriptions are all based on The Royal Horticultural Society Colour Chart, 5th edition.
- Type: Herbaceous perennial.
- Hardiness: USDA Zones 4 to
- Size: Grows to 53 cm (21 in.) wide
and 23 cm (9 in.) tall from the top of the
soil to the top of the foliage.
- Form: Clumping to form a
mound with leaves cascading
- Number of crowns per
- Number of leaves per
crown: 5 to 11.
- Type: Simple.
- Shape: Ovate.
- Arrangement: Basal rosette.
- Blade length: Grows to 18.5 cm (3.3 in.) .
- Blade width: Grows to 13 cm (5 in.) .
- Margins: Entire and somewhat
- Apex: Cirrhose.
- Base: Rounded and cupping
- Petiole: 13 cm (5 in.) to 17 cm (6.7 in.) long
and 7 mm to 12 mm (0.5 in.) wide, clasping,
glabrous, sulcate, inner surface
heavily spotted Greyed Purple N186C,
outer surface Greyed Purple N186C
except at base where spotted.
- Texture: Leathery.
- Surface texture: Glabrous on
both surfaces, glossy on bottom
- Venation: Average of 7 pairs
of veins, camptodrome pattern,
impressed on upper surface and
raised on lower surface.
- Color: Topside margins and
irregularly along veins from the tip
Green N137A, lightening to Green
137A near center, centers Yellow
White 158B, base along main vein
speckled Greyed Purple N186C; bottom
side margins Green 137A and Yellow
Green 146C, center Yellow White
158D, base along main vein Greyed
- Type: Self cleaning;
- Number of flowers per
raceme: About 30.
- Peduncle description: Grows
to 64.0 cm (25 in.) long and 6 mm wide,
glabrous, Greyed Purple N186C on
bottom half to Purple N77A on top
- Pedicel description: 10 mm
long and 1 mm wide, glabrous, Violet
- Floral bracts: One at the
base of each pedicel, at a 60 degree
angle, grows to 5.2 cm (2 in.) long and 16
mm wide, becoming progressively
smaller going up the peduncle,
ensiform, entire, acuminate,
clasping, cupping upward;
variegated, bottom side edges Green
137A, center White 155A on top
changing to Purple N77C on bottom
half; top side margins Green 137A
tinted Purple N77C, center White
155A tinted Purple N77A.
- Bloom time: August to
October in Canby, Oregon
- Lastingness of Inflorescence:
6 to 8 weeks.
• Flower bud:
- Size: 17 mm long and 7 mm
- Shape: Oblong, narrowing at
- Surface texture: Glabrous.
- Color: Violet Blue 90A.
- Type: Perfect.
- Shape: Campanulate, drooping
- Size: Average 3.5 cm (1.4 in.) long
and 2.0 cm (0.8 in.) wide.
- Surface texture: Glabrous
inside and out.
- Color: Outside Violet Blue
91A, inside Violet Blue 90A with
edges Violet 91D.
- Corolla description: 6
overlapping tepals, lobes
overlapping, tube 1.0 cm (0.4 in.) long and 2 mm
wide; outer tepal lobes oblong,
entire, obtuse, attenuate, 17 mm
long and 8 mm wide; inner tepals
obovate, entire, obtuse, attenuate,
17 mm long and 11 mm wide.
- Pistil description: 35 mm
long, ovary 6.0 cm (2.4 in.) long and 2 mm wide,
Yellow Green 146C, style 3 cm (1.2 in.) long,
White NN155A, stigma White NN155A.
- Stamen: 6, filaments 2.6 cm (1 in.)
long, White NN155A, anthers 3 mm
long and 2 mm wide, Greyed Yellow
162A, pollen Yellow 11A.
- Fragrance: None.
- Type: Capsule.
- Size: 3 cm (1.2 in.) long and 7 mm
- Shape: Oblong.
- Color: Greyed Purple N186C.
• Seed: 6 to 10 developed
seeds observed per capsule, about 5
mm in length and 3 mm in width,
• Pest and diseases: Snail
and slugs are the main problems on
Hosta. This new cultivar has
leathery waxy leaves and appears to
be less appealing to slugs. No
susceptibility or resistance to
diseases or other pests has been