New Guinea <i>Impatiens </i>plant named ‘Dongiwirope’

Abstract

A new and distinct cultivar of Impatiens plant named ‘Dongiwirope’ characterized by its upright to outwardly spreading and mounding plant habit; moderately vigorous to vigorous growth habit; freely branching habit; dense and full appearance; dark green-colored leaves; freely and early flowering habit; medium-sized semi-double to double-type coral-colored flowers that have a ruffled rosette appearance; and good garden performance.

Claims

1. A new and distinct Impatiens plant named ‘Dongiwirope’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying colored photographs illustrate the overall appearance of the new Impatiens 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 Impatiens plant.

(2) The photograph on the first sheet (FIG. 1) is a side perspective view of a typical flowering plant of ‘Dongiwirope’ grown in a container.

(3) The photograph on the second sheet (FIG. 2) is a close-up view of a typical flower of ‘Dongiwirope’.

DETAILED BOTANICAL DESCRIPTION

(4) The aforementioned photographs and following observations, measurements and values describe plants grown during the summer and autumn in winter and early spring in 16.5-cm containers in a polyethylene-covered greenhouse in Encinitas, Calif. and under cultural practices typical of commercial New Guinea Impatiens production. During the production of the plants, day temperatures averaged 25° C., night temperatures averaged 18° C. and light levels ranged from 4,000 to 4,500 lux. Plants were 13 weeks old when the photographs were taken and 17 weeks old when the description was taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Impatiens hawkeri ‘Dongiwirope’. Parentage: Female, or seed, parent.—Impatiens hawkeri ‘Duewildrwh’, disclosed in U.S. Plant Pat. No. 30,745. Male, or pollen, parent.—Impatiens hawkeri ‘Duewildrwh’, disclosed in U.S. Plant Pat. No. 30,745. Propagation: Type.—By terminal vegetative cuttings. Time to initiate roots, summer and winter.—About five to seven days at temperatures about 27° C. and night temperatures about 20° C. Time to produce a rooted young plant, summer and winter.—About three weeks at day temperatures about 27° C. and night temperatures about 20° C. Root description.—Fine, fibrous; typically white in color, actual color of the roots is dependent on substrate composition, water quality, fertilizers, substrate temperature and age of roots. Rooting habit.—Freely branching; dense. Plant description: Plant and growth habit.—Upright to outwardly spreading and mounding plant habit; broad inverted triangle in overall shape; freely branching habit with lateral branches potentially developing at every node; dense and full appearance; moderately vigorous to vigorous growth habit and moderate to rapid growth rate. Plant height.—About 28 cm. Plant diameter.—About 55 cm. Lateral branch description: Length.—About 21 cm. Diameter.—About 1.75 cm. Internode length.—About 5.25 cm. Strength.—Strong, stout; flexible. Aspect.—Initially upright to outwardly spreading. Texture and luster.—Smooth, glabrous; glossy. Color, developing and fully developed.—Close to 144A variably overlain with close to 183A. Leaf description: Arrangement.—Typically in whorls; simple. Length.—About 7.5 cm. Width.—About 3.25 cm. Shape.—Ovate to elliptic. Apex.—Acuminate. Base.—Attenuate to cuneate. Margin.—Serrate with ciliation. Texture and luster, upper and lower surfaces.—Smooth, glabrous; semi-glossy. Venation pattern.—Pinnate; arcuate. Color.—Developing leaves, upper surface: Initially, close to 146A becoming closer to 147A. Developing leaves, lower surface: Initially, close to 146B becoming closer to 147B. Fully expanded leaves, upper surface: Darker green than N189A; venation, close to between 144A and 146A. Fully expanded leaves, lower surface: Close to 147B; midvein, close to between 144A and 146A and lateral venation, close to 146A. Petiole length.—About 3.75 cm. Petiole diameter.—About 3.5 mm. Petiole texture and luster, upper and lower surfaces.—Smooth, glabrous; semi-glossy. Petiole color, upper and lower surfaces.—Close to between 144B and 146C. Flower description: Flower type and flowering habit.—Semi-double to double-type, medium-sized ruffled rounded rectangular axillary flowers; freely flowering habit, typically about five to seven open flowers and flower buds per lateral branch; flowers positioned above and beyond the foliar plane, flowers typically face mostly upright to outwardly. Flower longevity.—Flowers typically last about four to seven days on the plant under greenhouse conditions; petals self-cleaning, gynoecium persistent. Fragrance.—None detected. Natural flowering season.—Year-round under greenhouse conditions; in the garden, flowering from spring until fall in California; early flowering habit, plants typically begin flowering about eleven weeks after planting. Flower buds.—Length: About 1 cm. Diameter: About 7.5 mm. Shape: Ovoid; rosebud-like when opening. Texture and luster: Smooth, glabrous; glossy. Color: Close to 144A. Flower diameter.—About 5 cm by 6 cm. Flower depth.—About 1.75 cm. Petals.—Quantity and arrangement: Six to ten per flower in one to two whorls. Length, banner petals: About 2.5 cm. Length, lateral petals: About 2.75 cm. Length, lower petals: About 2.6 cm. Width, banner petal: About 3.4 cm. Width, lateral petals: About 3 cm. Width, lower petals: About 2.6 cm. Shape, all petals: Obcordate to broadly obcordate. Apex, all petals: Emarginate. Base, all petals: Cuneate to attenuate. Margin, all petals: Mostly entire with occasional and random indentations; undulate and ruffled and frilled appearance. Texture and luster, all petals, upper surface: Smooth, glabrous; velvety; slightly glossy; iridescent. Texture and luster, all petals, lower surface: Smooth, glabrous; slightly glossy; iridescent. Color, all petals: When opening, upper surface: Close to 38A and towards the margins, close to 56A. When opening, lower surface: Close to 56A to 56B. Fully opened, upper surface: Close to 38A; towards the margins, close to 56A and towards the base, close to 157D; venation, similar to lamina; color becoming closer to 38A to 38B increasingly tinged with close to 52A and towards the base, close to 157D with subsequent development. Fully opened, lower surface: Close to 56A to 56B; venation, close to 146A; color does not change with subsequent development. Sepals.—Quantity and arrangement: Three in a single whorl; one modified into an elongated spur. Lateral sepal length: About 1.2 cm. Lateral sepal width: About 7.5 mm. Spur sepal length: About 1.5 cm. Spur sepal width: About 1 cm. Sepal shape: Deltoid to ovate. Sepal apex: Acuminate. Sepal base: Truncate. Sepal margin: Entire. Sepal texture and luster, upper and lower surfaces: Smooth, glabrous; semi-glossy. Sepal color, upper surface: Close to 144C to 144D. Sepal color, lower surface: Close to 144B to 144C. Spur length: About 1 cm. Spur diameter: At flower, about 7.5 mm; at apex, less than 1 mm. Spur texture and luster: Smooth, glabrous; semi-glossy. Spur color: Close to 144C to 144D. Peduncles.—Length: About 3 cm. Diameter: About 1.5 mm. Angle: About 45° from stein axis. Strength: Strong; flexible. Texture and luster: Smooth, glabrous; semi-glossy to glossy. Color: Close to 144A to 144B. Reproductive organs.—Stamens: Quantity: Five fused at anthers; filaments free. Anther size: About 1 mm by 0.75 mm. Anther shape: Oblong. Anther color: Close to N155B. Pollen amount: None observed. Pistils: Quantity per flower: One. Pistil length: About 3 mm. Stigma shape: Crested. Stigma color: Close to 144A. Style color: Close to 144A. Ovary color: Close to 144A. Seeds and fruits.—To date, seed and fruit production has not been observed on plants of the new Impatiens. Pathogen & pest resistance: To date, plants of the new Impatiens have not been observed to be resistant to pathogens and pests common to Impatiens plants. Garden performance: Plants of the new Impatiens have been observed to have good garden performance and tolerate temperatures ranging from about 5° C. to about 40° C.