BACKGROUND OF THE INVENTION
The new cultivar was discovered as an induced mutation
using the known chemical colchicine, of Hosta
hybrid 'First
Frost' unpatented. 'Ben Vernooij' was
discovered by the inventor,
Marco Fransen, a citizen of
the Netherlands in October of 2008, at a research
facility in Ter Aar, The Netherlands. The intent of the
breeding program was to create new tetraploid Hosta
hyrids with strong foliage and vigorous plants.
Directly after discovery of the tetraploid mutation, the
inventor initiated cultivation in tissue culture, during
October of 2008, in a commercial laboratory in Iribov
Heerhugowaard, the Netherlands. Subsequently 'Ben Vernooij' has been reproduced by micro-propagation in a
commercial laboratory in Iribov Heerhugowaard, the
Netherlands and has shown that the unique features of
this cultivar are stable and reproduced true to type
through several generations.
BRIEF SUMMARY OF THE INVENTION
The cultivar 'Ben Vernooij' has not been observed under
all possible environmental conditions. The phenotype may
vary somewhat with variations in environment such as
temperature, day length, 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 'Ben Vernooij' These characteristics in combination
distinguish 'Ben Vernooij' as a new and distinct Hosta cultivar:
o
1. Distinctive, round foliage on thick petioles
o
2. Thick foliage resistant to environmental stressors.
o
3. Vigorous plant.
o
4. Large flowers.
COMPARISON TO PARENT
Plants of the new cultivar 'Ben Vernooij' are similar to
plants of the parent; Hosta hybrid 'First
Frost' in most horticultural characteristics, however, plants
of the new cultivar 'Ben Vernooij' are more vigorous and
produce thicker, stronger leaves and thicker petioles
than the parent variety. Additionally, the new variety
produces larger foliage and flowers than 'First
Frost'.
Leaves of 'Ben Vernooij' have a wider yellow margin than 'First
Frost'.
COMMERCIAL COMPARISON
'Ben Vernooij' can be compared to the commercial variety
Hosta hybrid 'Sleeping Beauty’, unpatented. The
varieties are similar in most horticultural
characteristics, however, plants of the new cultivar 'Ben Vernooij' are more vigorous and produce thicker,
stronger leaves than 'Sleeping Beauty. Additionally, the
new variety produces larger foliage than 'Sleeping Beauty' and have foliage with a wider yellow margin than 'Sleeping Beauty'.
BRIEF DESCRIPTION OF THE PHOTOGRAPHS
The accompanying photograph in FIG. 1 illustrates in
full color a typical plant of 'Volcano Island' grown
outdoors. This plant is approximately 6 months old,
shown in a 1 liter pot.
FIG. 2 illustrates a flowering plant.
The photographs were taken using conventional techniques
and although colors may appear different from actual
colors due to light reflectance it is as accurate as
possible by conventional photographic techniques.
DETAILED BOTANICAL DESCRIPTION
In the following description, color references are made
to The Royal Horticultural Society Colour Chart, 2007,
except where general terms of ordinary dictionary
significance are used. The following observations and
measurements describe 'Ben Vernooij' plants grown in a
commercial nursery in the Netherlands, from February of
2011 through June of 2011. Temperatures were 5° C. to
20° C. at night and 10° C. to 30° C. during the day.
Measurements and numerical values represent averages of
typical plant types. No growth regulators or special
treatments were used.
+ Botanical Classification: Hosta hybrid 'Ben Vernooij'.
PROPAGATION
§
Time to initiate roots: Approximately 14 to 21 days at
23° C.
§
Root description: Fleshy with moderate side roots.
PLANT
§
Growth habit: Outwardly arching herbaceous perennial
plant.
§
Height: Approximately 30 cm (11.8 in.) in a 1 liter pot.
§
Plant spread: Approximately 40 cm (15.7 in.) .
§
Growth rate: Moderate.
§
Branching characteristics: Branches emerge directly from
the roots.
§
Age of plant described: Approximately 4 months from a
stage 3 tissue culture.
FOLIAGE
+ Leaf:
§
Quantity per Plant: Average
20.
§
Leaf type: Simple,
basal emerging.
§
Average leaf length: Approximately
30 cm (11.8 in.) .
§
Average leaf width: Approximately
18 cm (7 in.), at widest point.
§
Apex: Acute.
§
Base: Cordate.
§
Overall leaf shape: Obovate.
§
Overall leaf aspect: Arching,
reflexed back.
§
Margin: Entire.
§
Texture of top surface: Smooth.
§
Texture of bottom surface: Smooth.
§
Appearance of top surface: Slightly
leathery.
§
Appearance of bottom surface: Slightly
leathery.
§
Pubescence: No
pubescence on leaves.
§
Color: Young
foliage upper side: Near RHS Green 137A, margin Yellow
3B. Young foliage under side: Near RHS Green 137A,
margin Yellow 3B. Mature foliage upper side: Near RHS
Green 137A, margin Yellow 2B. Mature foliage under side:
Near RHS Green 137A, margin Yellow 2B.
§
Venation: Type:
Pinnate. Venation coloration upper side:
Indistinguishable from foliage color. Venation
coloration under side: Indistinguishable from foliage
color.
+ Leaf Petiole:
§
Length: Approximately
20 cm (7.9 in.) .
§
Width: Approximately
2.3 cm (1.2 in.) at widest point.
§
Texture: Glabrous,
upper and lower surfaces.
§
Color: Upper
side: Near RHS Green 137B. Under side: Near RHS Green
137B.
§
Strength: Very
strong.
§
Other foliage characteristics: Thick foliage, resistant
to mechanical damage and environmental stressors.
FLOWER
§
Natural flowering season: Late Spring into Summer.
§
Inflorescence type and habit: Single, campanulate
arranged in racemes.
§
Rate of flower opening: Lowest flower opens first, all
flowers have opened in approx. 2 weeks.
§
Flower longevity on Plant: Approx. 2 weeks.
§
Quantity of Flowers: Average: over 60 flowers per
raceme.
+ Raceme size:
§
Height: Approximately
15.8 cm (3.1 in.), from lowest flower to top of Inflorescence.
§
Width: Approximately
12.0 cm (0.8 in.) .
+ Flower:
§
Perianth: Arrangement:
Campanulate.
§
Overall flower size: Length:
Approximately 5.5 cm (2.1 in.) . Width: Approximately 2.1 cm (0.8 in.) at
widest point.
§
Color:
§
Tepals: When
opening: Outer surface: Purple; near RHS 85D, base
tinged darker; near RHS 85C, top flushed darker; near
RHS 85B. Inner surface: White; near RHS NN155D, base
violet; near RHS 85C to 85D, flushed darker towards the
top; near RHS 85A. Fully opened: Outer surface: Purple;
near RHS 85D, base slightly darker; near RHS 85C. Inner
surface: White; near RHS NN155D, striped violet; 85B to
85C, base tinged near RHS 84C. Color Changes when Aging:
Violet; near RHS 85C to 85D.
+ Sepals or bracts:
§
Quantity: One
bract is placed under each individual flower.
§
Shape: Ovate,
concave.
§
Length: Approximately 2.2 cm (0.9 in.) .
§
Diameter: Approximately
0.7 cm (0.28 in.) .
§
Color: Outer
surface: Yellow-green; near RHS 146B, Inner surface:
Yellow-green; near RHS 146A, base lighter; near RHS
145B. Color Changes when Aging: Not changing.
+ Bud:
§
Shape: Obovate.
§
Length: Approximately 2.6 cm (1 in.) .
§
Diameter: Approximately 1.0 cm (0.4 in.) .
§
Color: Violet;
near RHS 85D, striped darker; near RHS 85C.
+ Pedicels:
§
Length: Approximately
0.9 cm (0.35 in.) .
§
Width: Approximately 0.2 cm (0.08 in.) .
§
Aspect: Placed
to the petiole in an average angle of 20°
(0°=horizontal), slightly curved downward in an average
angle of −10° (0°=horizontal).
§
Color: Violet;
near RHS 85D, base tinged yellow-green; near RHS 146B.
+ Scape:
§
Length: Approximately
30.9 cm (0.35 in.) .
§
Width: Approximately
0.7 cm (0.28 in.) .
§
Angle: Near
vertical.
§
Strength: Strong.
§
Color: Green;
near RHS 143A to 143B, covered with a greyed-green waxy
layer; near RHS 189B.
§
Fragrance: No.
REPRODUCTIVE ORGANS
+ Stamens:
§
Number: Average
6.
§
Filament length: Approximately
5.3 cm (1.2 in.) .
§
Filament color: Yellow-green;
near RHS 145D.
§
Anther length: Approximately
0.4.0 cm (1.6 in.) .
§
Anther color: Greyed-orange;
near RHS 16A to 166B.
§
Anther shape: Oblong,
dorsifixed.
§
Pollen: Moderate,
coloured yellow-orange; near RHS 17A.
+ Pistil:
§
Number: 1.
§
Length: Approximately
5.4 cm (2.1 in.) .
§
Style color: Yellow-green;
near RHS 145D, darker towards the base; near RHS 145B to
145C.
§
Stigma: Shape:
Club-shaped. Color: White; near RHS NN155D.
§
Ovary color: Yellow-green;
near RHS 145B.
OTHER CHARACTERISTICS
+ Disease resistance: Better resistance to diseases or
pests has been observed in this variety, due to the
strong, thick foliage.
§
Temperature tolerance: Hardy perennial, tolerates a
temperature range from approximately −30° C. to at least
40° C.
§
Drought tolerance: No tolerance for drought.
|