<i>Dianthus </i>plant named ‘G18139’

Abstract

A new and distinct cultivar of Dianthus plant named ‘G18139’ is disclosed, characterized by rose-colored flowers with a distinct white eye. Plants are Winter hardy in Zone 5 and flower continuously from May through early November at 41N latitude. Healthy plants and leaves with constant growth from center. The new variety is a Dianthus, normally used for outdoor ornamental purposes.

Claims

1. A new and distinct cultivar of Dianthus plant named ‘G18139’ as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying photograph in FIG. 1 illustrates a typical flowering plant of ‘G18139’ grown outdoors in Bellefonte, Pa. at approximately 4 months old in a 1-gallon pot.

(2) FIG. 2 illustrates a close-up view of the flowers.

(3) 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

(4) 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 ‘G18139’ plants grown outdoors in Camarillo, Calif. The growing temperature ranged from approximately 10° C. to 25° C. during the day and from approximately 6° C. to 12° C. during the night. General light conditions are normal sunlight and numerical values represent averages of typical plant types. Measurements were taken during June of 2021. Botanical classification: Dianthus hybrida ‘G18139’.

PROPAGATION

(5) Time to initiate roots: About 10 days at approximately 24° C. Time to produce a rooted cutting: About 18 days at 24° C. Root description: Fibrous roots, approximately 1 to 3 mm in diameter, colored near RHS Orange-White 159C.

PLANT

(6) Age of plant described: About 10 weeks from a rooted cutting. Growth habit: Mounded flowering perennial. Plant spread: About 21 cm. Plant height: About 9 cm. Plant vigor: Strong. Length plant stem: Average 7 cm. Diameter of plant stem: Approximately 3 mm. Quantity stems: Approximately 30 to 40. Stem: Color.—Near RHS Greyed-Green 191C. Texture.—Smooth. Hollowness.—Slightly hollow with age. Internode length: 1 to 2 cm.

FOLIAGE

(7) Leaf: Arrangement.—Opposite (in pairs). Quantity.—Approximately 10 to 14 fully expanded per stem. Average length.—2.5 to 4.3 cm. Average width.—3 to 4 mm. Shape of blade.—Linear. Apex.—Acute. Base.—Clasping. Attachment.—Sessile. Margin.—Entire. Texture of top surface.—Smooth. Texture of bottom surface.—Smooth. Pubescence.—None. Color.—Young foliage upper side: Near RHS Green N138A. Young foliage under side: Near RHS Green N138B. Mature foliage upper side: Near RHS Green N138A. Mature foliage under side: Near RHS Green N138C. Venation.—Type: Linear. Venation color upper side: Indistinguishable from foliage. Venation color under side: Indistinguishable from foliage.

FLOWER

(8) Natural flowering season: May through early November at 41N latitude. Inflorescence type and habit: Umbel of 2 to 4 flowers. Flower longevity on plant: Individual flowers about 10 days. Quantity of flowers: Approximately 50 flowers and buds on a 10-week-old plant. Flowers persistent or self-cleaning: Persistent. Fragrance: Faint sweet scent. Inflorescence (umbel) size: Diameter.—Approximately 6.0 cm. Height.—Approximately 5.0 cm. Individual flower size: Diameter.—Approximately 2.7 cm. Length.—Approximately 2.5 cm. Petals: Petal arrangement.—Single overlapping whorl. Shape.—Spatulate, elongated base. Base.—Long attenuate. Margin.—Serrated. Apex.—Serrate. Length.—Upper section, outside of tube: 1.3 cm. Elongated base, in tube, 1.6 cm. Width.—Upper section, outside of tube: 1.3 cm. Elongated base, in tube, 3 mm. Petal quantity.—Average range 15 to 18. Texture.—Smooth all surfaces. Aspect.—Nearly flat. Color: When opening.—Upper surface: Near RHS Red-Purple N74A, streaked Red-Purple 70C, margins near Purple 75B. Center eye Red-Purple N74D. Lower surface: Near RHS Red-Purple N74B streaked Red-Purple N74C. Base near tube N74D. Fully opened.—Upper surface: Near RHS Red-Purple N74B, streaked Red-Purple 70D, margins near Purple 75C. Center eye Red-Purple 70D. Lower surface: Near RHS Red-Purple N74C streaked Purple 75C. Base near tube N74D. Tube: General description.—Tube consists of the elongated, unfused base of the petals. Tube shape caused by a fused calyx. Length.—1.7 cm. Width.—5 mm. Texture.—Smooth. Color: Fully opened.—Inner surface: Near RHS Green N138D. Outer surface: Near RHS Green N138D. Bud: Shape.—Elongated cylinder. Length.—Average 1.8 cm. Diameter.—Average 0.9 cm. Color.—Appearing petals colored near RHS Red-Purple N74B. Sepals: Quantity.—5. Arrangement.—Fused tube. Shape.—Cylindric. Length.—1.3 cm. Width.—0.3 cm. Margin.—Entire. Apex.—Acute. Texture.—Smooth upper and lower surfaces. Color.—Near RHS Green N138D. Bracteoles: Shape.—Narrow deltoid. Quantity per flower.—5-7. Length.—Average 5 mm. Width.—Average 4 mm. Margin.—Entire. Texture.—Smooth. Color.—Near RHS Green N138D. Peduncle: Length.—Average 3 to 4 cm. Diameter.—2.0 mm. Color.—Near RHS Green N138D. Orientation.—Upright. Strength.—Moderate. Texture.—Smooth.

REPRODUCTIVE ORGANS

(9) Stamens: Number.—About 10. Filament length.—1.5 cm. Filament color.—Near RHS Red-Purple 69C. Anthers: Shape.—Linear. Length.—3 mm. Color.—RHS Greyed-Purple N187D. Pollen.—Not observed. Pistil: Number.—1, 2 stigmas. Length.—2.1 cm. Style.—Number: 2. Length: Approximately 1.3 cm. Color: Base near RHS Red-Purple 69D, upper-section Red-Purple 69A. Stigma.—Shape: Linear. Color: Near RHS Red-Purple 70D. Ovary.—Shape: Oblong. Diameter: 7 mm. Length: 7 mm. Color: Near RHS Yellow-Green 150D.

OTHER CHARACTERISTICS

(10) Fruits and seeds: Not observed to date. Disease/pest resistance: Shows good field-tolerance to common Dianthus pathogens. Specific pathogens resistance has not been determined. Temperature range: Winter hardiness to at least USDA Zone 5.