BACKGROUND OF THE INVENTION
The present invention relates to the new and distinct
cultivar of Hosta, botanically known as Hosta
hybrid (Tratt.), and hereinafter referred to as the
cultivar 'Dancing in the Rain'.
The new plant was discovered in July 1999 by the
Clarence (C.H.) Falstad, III , as a non-induced,
naturally occurring somaclonal variation of Hosta 'Blue Umbrellas' (not patented) in the plant tissue
culture laboratory at a
nursery in Zeeland, Mich., USA.
Asexual propagation of the plant at the same nursery by
tissue culture and division has shown that the unique
and distinct characteristics of this new plant are
stable and reproduce true to type in successive
BRIEF SUMMARY OF THE INVENTION
Hosta 'Dancing in the Rain' is unique from its parent sport,
Hosta ‘Blue Umbrellas’, and all other Hosta
cultivars, in several traits. Hosta ‘Blue Umbrellas' is a very large Hosta cultivar of
unidentified parentage having large dark green leaves with a
slight glaucous surface. 'Dancing in the Rain' has a
cream-colored viridescent center and dark green to
blue-green margin. During summers with temperatures in
excess of 35 degrees C., and on young potted plants
grown under similar warm conditions, the color of the
leaf center shifts from the initial creamy white to a
white with green misting, and then to nearly solid light
green. Temperatures between 30 and 35 C. cause the plant
to develop only the green misting. This transition is
only a seasonal phenotype change, and does not reflect
any change in genotype. The following spring the plant
emerges with the same cream-colored center to the
BRIEF DESCRIPTION OF THE DRAWINGS
The photographs of the new invention demonstrate the
overall appearance of the plant including the unique
traits. The colors are as accurate as reasonably
possible with color reproductions. Some slight variation
of color may occur as a result of lighting quality,
intensity, wavelength, direction or reflection.
FIG. 1 shows the flower.
FIG. 2 shows the plant.
FIG. 3 shows a leaf with beginnings of the viridescent
FIG. 4 shows the leaf of a young plant having gone
nearly completely green.
DETAILED BOTANICAL DESCRIPTION
The following descriptions and color references are
based on The Royal Horticultural Society Colour Chart (2001 edition) except where common dictionary terms are
used. The new plant, Hosta ‘Dancing in the Rain’,
has not been observed under all possible environments.
The phenotype may vary slightly with different
environmental conditions, such as temperature, light,
fertility and moisture, but without any change in the
genotype. The following observations and size
descriptions are of a three-year old plant in a one
gallon container grown in Zeeland, Mich., USA under 50%
shade on cloudless days, day temperatures of 18 cm (7 in.) to 28
degrees C., and night temperatures of 15 to 20 C.
+ Botanical Classification: Hosta hybrid cultivar 'Dancing in the Rain'.
Parentage: Naturally occurring uninduced somaclonal
variation of Hosta ‘Blue Umbrellas' (not
Propagation: Method by tissue culture and division. Time
to initiate roots from both division and tissue culture
three to four weeks from cutting.
Rooting habit: Normal, fleshy, to 3 mm thick, slightly
+ Plant habit: Herbaceous, densely rhizomatous perennial,
symmetrical with radical leaves upright and erect
through flowering period, more horizontal late in the
season and in maturity.
Crop time: Under
normal summer greenhouse growing conditions about 22
weeks to finish in a one-liter container; plant vigor is
good especially for a hosta with white-centered
Plant size: At
flowering is 18 cm (7 in.) to 24.0 cm (9 in.) tall and 25 to 30 cm (11.8 in.) wide.
+ Flower description:
Shape and size: Ovate
to broadly ovate leaf blades have a sharply acute apex
when mature and cordate base. The leaf blades are 13 to
16 cm (6.3 in.) long and 8 to 10 cm (4 in.) wide.
surface is a deep green closest to RHS 141 A on the
margin of young emerging leaves. Later in the growing
season, the margin is between RHS 139 A and RHS 136 A.
As leaves are first emerging, the inside, or center
portion of the leaf is yellow-green, more green than RHS
151 C. The center of the leaves then lightens to between
yellow RHS 11 D to RHS 13 D later in the growing season.
Both the leaf surfaces are moderately glaucous early in
the season, but shinier near mid-summer.
Abaxial margin surface is RHS 137 B on early young
leaves, and RHS 137 A on leaves later in the season. The
abaxial center color starts RHS 154 D and lightens to
RHS 4 D with light and heat as the season progresses.
There are also three or more intermediate color patterns
between the center and the margin. The most prominent
color band is yellow-green RHS 144 B on newly emerged
leaves, and between RHS 143 B and RHS 143 C on older
leaves. Other more yellow, lighter, or more grayed bands
are also sometimes present in thinner and shorter
stripes. The main intermediate band visible on the
abaxial side is RHS 144 C on young leaves and about RHS
145 C on leaves later in the season. The thinner and
shorter bands on the abaxial side are comparable, but
slightly lighter than those on the adaxial surface.
Petioles are 18 cm (7 in.) to 22 cm (8.7 in.) long and 6 to 9 mm wide. The
center color starts the same as the leaf center and
lightens to RHS 11 D, but varies like the leaves
depending on how much light the petiole receives. The
edge of the petiole is green RHS 136 A on both surfaces.
Margin width: The
leaf blade margin is entire and the green variegation
pattern on the edge varies in different regions of the
leaf from 10 to 25 mm wide; variable in location on
leave and also with age of plant; in young immature
plants margins are thinner; increases as plants mature
up to about seven to nine years-old.
+ Flower description:
days prior to opening the buds are violet RHS 85 D and
RHS 85 A, 6 to 7 cm (2.8 in.) long, up to 1.5 cm (.6 in.) wide.
to 21 per scape, funnelform, 4 to 6.0 cm (2.4 in.) wide and 6 to 8 cm (3.1 in.) long, (distal flowers being smaller); no detectable
fragrance, persists for a normal period, up to two days,
and the scapes remain effective from mid July to late
in two layers of three, fused at base; with
slightly-recurved acute apex; approximately 7 cm (2.8 in.) long
and 1.2 cm (.5 in.) wide, the inner three with clear 1 and 2 mm
margin, base color in center of tepals Red purple RHS
69D and violet stripes of RHS 84 B. The base of the
tepals is between RHS 75 B and 76 B.
flowers, 2.0 cm (.8 in.) long and 5 to 7 mm wide with the same
colors and pattern as the leaves.
to 48 cm (19 in.) tall and 0.8 cm (.31 in.) in diameter, cream color RHS 11
D with tints of green closer to the base, and a reddish
purple stippling RHS 60 B becoming much thicker at the
apical one fifth.
Pedicel: Approximately 1.0 cm (0.4 in.) long, 3 mm wide, between RHS 76 C and RHS D.
5 to 6.0 cm (2.4 in.) long, 1 mm diameter, near white, curled
upward at distal end; Stigma white, to 3 mm diameter.
six, white, approximately 1 mm in diameter and to 5 cm (2 in.)
to 6 mm long, 1.5 mm wide, about RHS 83 A around margin
of abaxial side, white in center, pollen is
yellow-orange RHS 17 B.
Seeds have not been observed.
+ Disease resistance: The plant is more resistant to
melting-out, a condition where the lighter leaf center
becomes necrotic, than most other light-centered Hosta cultivars. It grows best with plenty of
moisture but is able to tolerate some drought. Hardiness
to at least USDA zone 3, and other disease resistance is
typical of other Hostas.