<i>Dahlia </i>plant named ‘Dodahyproswi’

Abstract

A new and distinct cultivar of Dahlia plant named ‘Dodahyproswi’, characterized by its broadly upright and uniformly mounding plant habit; moderately vigorous to vigorous growth habit and moderate growth rate; strong branching habit; dark green-colored leaves; freely flowering habit; large double-type inflorescences with reddish purple and white bi-colored ray florets; good postproduction longevity; and good garden performance.

Claims

1. A new and distinct Dahlia plant named ‘Dodahyproswi’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPH

(1) The accompanying photograph illustrates the overall appearance of the new Dahlia plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Dahlia plant. The photograph is a side perspective view of a typical flowering plant of ‘Dodahyproswi’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

(2) The aforementioned photograph and the following observations and measurements describe plants grown during the summer in 15-cm containers in a glass-covered greenhouse in De Lier, The Netherlands and under environmental conditions and cultural practices which approximate those generally used in commercial potted Dahlia production. During the production of the plants, day temperatures ranged from 18° C. to 30° C., night temperatures ranged from 16° C. to 22° C. and light levels were at least 135 watt/m.sup.2. Plants were pinched one time about four weeks after sticking unrooted cuttings. Plants were twelve weeks old when the photograph was taken and eleven weeks old when the description was taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Dahlia variabilis ‘Dodahyproswi’. Parentage: Female, or seed, parent.—Unidentified proprietary selection of Dahlia variabilis, not patented. Male, or pollen, parent.—Unidentified proprietary selection of Dahlia variabilis, not patented. Propagation: Type.—By vegetative terminal cuttings. Time to initiate roots, summer.—About twelve days at temperatures about 22° C. to 30° C. Time to initiate roots, winter.—About two weeks at temperatures about 20° C. to 22° C. Time to produce a rooted plant, summer.—About three weeks at temperatures about 22° C. to 30° C. Time to produce a rooted plant, winter.—About 3.5 weeks at temperatures about 20° C. to 22° C. Root description.—Medium in thickness, fibrous; typically whitish grey in color, actual color of the roots is dependent on substrate composition, water quality, fertilizers, substrate temperature and age of roots; tuber development has not been observed on plants of the new Dahlia. Rooting habit.—Moderately freely branching; medium density. Plant description: Plant and growth habit.—Broadly upright and uniformly mounding plant form; broad inverted triangle; moderately freely basal branching habit with about four primary lateral branches developing per plant, each primary lateral branch with about two to four secondary branches; pinching enhances lateral branch development; inflorescences held above the foliar plane on strong peduncles; bushy and dense habit; moderately vigorous to vigorous growth habit and moderate growth rate. Plant height, soil level to top of foliar plane.—About 28 cm. Plant height, soil level to top of floral plane.—About 30 cm. Plant diameter or spread.—About 47 cm. Lateral branches.—Length: About 22 cm. Diameter: About 1 cm. Internode length: About 5.5 cm. Aspect: Mostly upright to slightly outwardly spreading. Strength: Moderately strong. Texture and luster: Smooth, glabrous; semi-glossy. Color: Close to 146B; internodes, close to 145A; with development, color becoming closer to 144A. Leaf description: Arrangement.—Opposite; leaves may be single or compound with typically three leaflets. Leaf length.—About 21 cm. Leaf width.—About 15 cm. Leaflet length.—About 12.5 cm. Leaflet width.—About 5.8 cm. Leaf and leaflet shape.—Ovate. Leaf and leaflet apex.—Acute. Leaf and leaflet base.—Attenuate. Leaf and leaflet margin.—Dentate; indentations medium in depth and divergent. Leaf and leaflet venation pattern.—Pinnate. Leaf and leaflet texture and luster, upper surface.—Smooth, glabrous; semi-glossy. Leaf and leaflet texture and luster, lower surface.—Smooth, glabrous; matte. Color.—Developing leaves and leaflets, upper surface: Close to N137B. Developing leaves and leaflets, lower surface: Close to 137C. Fully expanded leaves and leaflets, upper surface: Close to N137A; venation, close to 144B. Fully expanded leaves and leaflets, lower surface: Close to 147B; venation, close to 143D. Petioles.—Length: About 6 cm. Diameter: About 4 mm. Strength: Moderately strong. Texture and luster, upper and lower surfaces: Smooth, glabrous; semi-glossy. Color, upper surface: Close to N137A. Color, lower surface: Close to 143D. Inflorescence description: Appearance and arrangement.—Double inflorescence form with ray florets forming acropetally on a receptacle; inflorescences positioned above the foliar plane on strong peduncles; inflorescences face mostly upright; freely flowering habit with about eight to twelve open inflorescences per plant at one time. Fragrance.—None detected. Time to flower.—Plants flower continuously from spring until late summer in The Netherlands; early flowering habit, plants begin flowering about ten to twelve weeks after sticking unrooted cuttings. Post-production longevity.—Inflorescences maintain good substance for about two to three weeks on the plant; inflorescences persistent. Inflorescence buds.—Height: About 1.1 cm. Diameter: About 1.8 cm. Shape: Globular. Texture and luster: Smooth; glossy. Color: Close to 144B. Inflorescence size.—Diameter: About 8.8 cm. Depth (height): About 4.5 cm. Disc diameter: About 1.1 cm. Receptacle height: About 4 mm. Receptacle diameter: About 1.2 cm. Receptacle color: Close to 144B. Ray florets.—Quantity per inflorescence: About 80 to 90 arranged in about six to eight whorls. Length: About 5 cm to 6 cm. Width: About 3 cm. Shape: Lanceolate. Apex: Obtuse. Base: Cuneate. Margin: Entire. Aspect: Initially upright to roughly perpendicular to the peduncle; somewhat concave. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening, upper and lower surfaces: Center, close to 158B and towards the margins and base, close to 70B. Fully opened, upper and lower surfaces: Center, close to 158C and towards the margins and base, close to 70B; venation similar to lamina color; colors do not change with subsequent development. Disc florets.—Quantity per inflorescence: About 50 to 60; disc florets are inconspicuous. Length: About 1.3 cm. Diameter: About 3 mm. Shape: Tubular, elongated; apices obtuse. Texture and luster: Smooth, glabrous; matte. Color, when opening and fully opened, inner and outer surfaces: Close to 1B. Phyllaries.—Quantity per inflorescence: About six arranged in a single whorl. Length: About 2.5 cm. Width: About 1 cm. Shape: Lanceolate. Apex: Acute. Base: Cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color, upper and lower surfaces: Close to 137A; venation, close to 137A. Peduncles.—Length, terminal peduncle: About 6.5 cm. Diameter, terminal peduncle: About 4 mm. Aspect: Mostly erect to slightly outwardly. Strength: Moderately strong. Texture and luster: Smooth, glabrous; semi-glossy. Color: Close to 144B. Reproductive organs.—Androecium: Present on disc florets only. Stamen quantity per floret: One. Filament length: About 1.1 cm. Filament color: Close to 12B. Anther size: About 4 mm by 5 mm. Anther color: Close to 17B. Pollen amount: Moderate. Pollen color: Close to 17B. Gynoecium: Present on disc florets only. Pistil quantity per floret: One. Pistil length: About 1.3 cm. Style length: About 1.1 cm. Style color: Close to 144D. Stigma diameter: Less than 1 mm. Stigma shape: Round. Stigma color: Close to 144C. Ovary color: Close to N144C. Seeds: To date, seed development has not been observed on plants of the new Dahlia. Pathogen & pest resistance: To date, plants of the new Dahlia have not been observed to be resistant to pathogens and pests common to Dahlia plants. Temperature tolerance & garden performance: Plants of the new Dahlia tolerate high temperatures about 35° C. and short periods of low temperatures about 5° to 10° C. Plants of the new Dahlia have been observed to have good garden performance.