<i>Dianthus </i>plant named ‘WP22 PIE39’

Abstract

A new cultivar of Dianthus plant named WP22 PIE39 that is characterized by a compact mounding habit, large single white flowers with a vibrant magenta band, blooming from May through October, with a medium, clove like fragrance, glaucous blue green foliage, suitable for use as a flowering plant in pots and containers as well as for use as a cut flower and in bouquets, is disclosed.

Claims

1. A new and distinct cultivar of Dianthus plant named WP22 PIE39 as described and illustrated herein.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying color photographs illustrate the overall appearance of the new Dianthus variety WP22 PIE39 showing colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ from the color values cited in the detailed botanical description, which accurately describe the actual colors of the new variety WP22 PIE39.

(2) FIG. 1 depicts a close-up view of the flowers of WP22 PIE39.

(3) FIG. 2 depicts an entire flowering plant of WP22 PIE39.

(4) Photographs were taken in May 2021 in Santa Barbara, California of twelve-month-old plants which have been grown outdoors in 2-gallon containers. No chemicals were used to treat the plants. All photographs were made using conventional techniques and although colors may appear different from actual colors due to light reflectance they are as accurate as possible by conventional photography.

BOTANICAL DESCRIPTION OF THE PLANT

(5) The following is a detailed description of the new cultivar WP22 PIE39. Data was collected from 12-month-old plants grown in 3-liter containers under an unheated glasshouse in Ashcombe, Dawlish, United Kingdom. The color determinations are in accordance with the sixth edition (2015) of The Royal Horticultural Society Color Chart of The Royal Horticultural Society, London, England, except where general color terms of ordinary dictionary significance are used. No chemicals were used to treat the plants. Growing conditions are typical to other Dianthus. Botanical classification: Dianthus. Variety.WP22 PIE39. Species: x allwoodii. Common names.Hybrid Dianthus, Garden Pink. Commercial classification.Hardy perennial. Use.Ornamental plant for pots and containers. Parentage: WP22 PIE39 is a hybrid plant that resulted from the open pollination of a Dianthus x allwoodii plant. Female parent plant.GI068 experimental Dianthus plant (unpatented). Male parent plant.Unknown. Plant description: Bloom period.May to October. Plant habit.Compact mounding habit. Plant height.35 cm to 40 cm in overall height, including flower canopy. Plant width.25 cm to 30 cm in width. Plant hardiness.Hardy to minus 15 Centigrade. Type.Perennial. Root system.Fibrous. Propagation.Propagation is accomplished using shoot cuttings. Cultural requirements.Plant in full sun, well-drained and moderately fertile soil and keep well fertilized and watered. Time required to produce a rooted cutting.5 weeks are needed to produce a rooted cutting. Temperature recommended for cuttings to produce roots.The air temperature needed is a minimum of 15 Centigrade air temperature and base heat of 21 Centigrade. Crop time.6 to 9 months is needed to produce a finished 3-litre container size from a well-rooted cutting. Stem: Shape.Cylindrical, solid. Dimensions.11 cm in length, 5 mm diameter. Surface.Glabrous and glaucous. Color.145B, 145C and 145D (in the sheathing zone). Branching.Numerous shoots from the axils of the lower leaves. Internode length.About 5 mm between nodes (before extension of peduncle). Node dimensions.4 mm in diameter and 5 mm in length. Leaf: Type.Evergreen. Dimensions.11 cm in length, 4 mm in width. Color adaxial surface.N189C. Color abaxial surface.N189C. Shape.Linear. Division.Simple. Apex.Acute. Base.Decurrent. Venation.Absent on the adaxial surface and only one central vein visible on the abaxial surface. Margins.Entire. Attachment.Sheathing. Arrangement.Opposite and spiraling up stem. Surfaces (adaxial and abaxial).Glaucous. Fragrance.Absent. Flowers: Inflorescence.Simple cyme. Type.Single, polypetalous. Number.5 to 9 per stem. Dimensions (including calyx).40 mm in length and 45-50 mm in diameter. Shape.Circular. Lastingness.10 days at 20 Celsius on the plant; 8 to 10 days off the plant. Fragrance.Medium, clove like. Flowering period.May to October. Peduncle: Shape.Cylindrical, solid. Dimensions.About 33 cm in length, 2 mm in diameter. Surface.Glabrous, waxy. Strength.Strong, rigid. Color.122B. Bud: Shape.Oblong. Color.N138B to N138C on apical half and 144B to 144C on basal half (below the bracts). Anthocyanin.Absent. Dimensions.30 mm in length and 8 mm in width (at breaking color point). Petals: Corolla.Upper and lower part of corolla is flat. Petal arrangement.Persistent, apopetalous and overlapping. Margin.Crenate-dentate. Indentations.up to 1 mm deep. Texture.Soft. Type.Single. Number of petals.5. Dimensions.50 mm in length, 30 mm in width. Petal shape.Fan shape. Petal surface.Glabrous. Petal apex.Fan shaped, crenate-dentate. Petal base.Strap shaped, tapering towards base. Color pattern.Blade is withe, with a vibrant magenta band. Petal color (adaxial surface).Ground color of blade: whiter than NN155D. Color of band: NN78A and N74B are both present (about 7 mm wide) with 149D at the base of the band. Color of middle of strap: whiter than NN155D. Color of base of strap: 149D. Petal color (abaxial surface).Ground color of blade: whiter than NN155D. Color of middle of strap: whiter than NN155D. Color of base of strap: 149D. Calyx: Dimensions.30 mm in length and 10 mm in width. Shape.Cylindrical and straight. Sepals.5, fused up to 8 mm below the apex. Sepal dimensions.31 mm in length and 5 mm in width. Apex.Acute. Base.Truncate. Color of sepals, outer surface.N138A to N138B on apical half and 144C to 144D on basal half (below the bracts). Color of sepals, inner surface.139D. Anthocyanin.Absent. Splitting.Not observed. Epicalyx: Number of bracts.1 pair of 2. Bracts shape.Acute. Bracts dimensions.7 mm in length and 5 mm in width. Bracts color.N138B, N138C and 144B, 144C, 144D are all present. Anthocyanin.Absent. Number of bracteoles.1 pair of 2. Bracteoles shape.Medium acuminate. Bracteoles dimensions.10 mm in length and 10 mm in width. Bracteoles color.N138B, N138C and 144B, 144C, 144D are all present. Bracteoles anthocyanin.Absent. Reproductive organs: Stamen number.10. Stamen dimensions.30 mm length and 0.5 mm diameter. Color of filaments.Whiter than NN155D. Anther number.10. Anther dimensions.3 mm length and 0.5 mm in diameter. Color of anthers.76A (when fresh anthers). Anther attachment.Dorsifixed. Pollen.Present, 202C. Style number.2. Style shoulder.Absent. Color of style.Whiter than NN155D. Style dimensions.30 mm to 35 mm in length and 1 mm in width. Stigma number: One on each style. Stigma color.Whiter than NN155D. Stigma dimensions: About 15 mm long along the top of the style, fimbriated zone, 5 to 8 mm above petals at maturity (and curling). Ovary position.Superior. Ovary dimensions.10 mm in length and 6 mm in diameter. Ovary shape.Oblong. Ovary surface and texture.Smooth and slightly ribbed. Ovary color.144C and 145A are both present at the uppermost surface, becoming paler into 149D and 150D at the lowest surface. Seed: No seeds have been observed. Diseases and pests: Susceptible to known Dianthus pests and disease but no other susceptibilities to pests or disease are known.

COMPARISON WITH PARENTAL LINE AND KNOWN VARIETY

(6) WP22 PIE39 is distinguishable from the female parent as follows. The female parent GI068 bears light pink flowers with a maroon band. The petal edges are also deeply toothed. Also, when grown outside, the overall flowering height of GI068 is higher than WP22 PIE39.

(7) The variety of Dianthus considered to most closely resemble WP22 PIE39 is Dianthus Plant Named WP15 PIE41 (U.S. Plant Pat. No. 29,834). In comparison with WP15 PIE41, WP22 PIE39 bears single white flowers with a vibrant magenta band. The leaves of WP22 PIE39 are wider and overall, the mound is not as compact as WP15 PIE41.