plant named ‘G15272’

Abstract

A new and distinct cultivar of Gaillardia plant named ‘G15272’, characterized by its upright to outwardly spreading plant habit; vigorous growth habit and moderate growth rate; freely branching habit; dense and bushy habit; strong leaves that resist leaf pathogens; early and freely flowering habit; single sterile inflorescences with bright red-colored ray florets with bright yellow-colored apices; and good garden performance.

Description

Botanical designation: Gaillardia sp. X Gaillardia x grandiflora.

Cultivar denomination: ‘G15272’.

CROSS-REFERENCE TO A RELATED APPLICATION AND STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR/APPLICANT

This application claims priority to a Canadian Plant Breeders' Rights application filed on May 17, 2019, application number 19-9869. There have been no offers for sale anywhere in the world prior to the effective filing date of this Application and no accessibility to one of ordinary skill in the art could have been derived from the printed Plant Breeder's Rights documents.

The Inventor/Applicant asserts that no publications nor advertisements relating to sales, offers for sale or public distribution occurred more than one year prior to the effective filing date of this application. Any information about the claimed plant would have been obtained from a direct or indirect disclosure from the Inventor. Applicant claims a prior art exemption under 35 U.S.C. 102(b)(1) for disclosure and/or sales prior to the filing date but less than one year prior to the effective filing date.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Gaillardia plant, botanically known as the interspecific hybrid, Gaillardia sp. X Gaillardia x grandiflora, and hereinafter referred to by the name ‘G15272’.

The new Gaillardia plant is a product of a planned breeding program conducted by the Inventor in Bellefonte, Pa. The objective of the breeding program is to create new sterile Gaillardia plants with numerous attractive inflorescences and resistant to pathogens common to Gaillardia plants.

The new Gaillardia plant originated from a cross-pollination in October, 2014 of a proprietary selection of Gaillardia sp. identified as code number G2X-32015-2, not patented, as the female, or seed, parent with a proprietary selection of Gaillardia x grandiflora identified as code number G2X-32014-1, not patented, as the male, or pollen, parent. The new Gaillardia plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled environment in Bellefonte, Pa. on Sep. 15, 2015.

Asexual reproduction of the new Gaillardia plant by vegetative terminal cuttings in Bellefonte, Pa., since October, 2015 has shown that the unique features of this new Gaillardia plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Gaillardia have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘G15272’. These characteristics in combination distinguish ‘G15272’ as a new and distinct Gaillardia plant:

• • 1. Upright to outwardly spreading plant habit.
  • 2. Vigorous growth habit and moderate growth rate.
  • 3. Freely branching habit; dense and bushy habit.
  • 4. Strong leaves that resist leaf pathogens.
  • 5. Early and freely flowering habit.
  • 6. Single sterile inflorescences with bright red-colored ray florets with bright yellow-colored apices.
  • 7. Good garden performance.

Plants of the new Gaillardia differ primarily from plants of the female parent selection in the following characteristics:

• • 1. Plants of the new Gaillardia are more vigorous and more outwardly spreading than plants of the female parent selection.
  • 2. Margins of leaves of plants of the new Gaillardia are not as deeply dentate as margins of leaves of plants of the female parent selection.
  • 3. Plants of the new Gaillardia have single-type inflorescences whereas plants of the female parent selection have double-type inflorescences.
  • 4. Disc florets of plants of the new Gaillardia are sterile whereas disc florets of plants of the female parent selection are fertile.

Plants of the new Gaillardia differ primarily from plants of the male parent selection in the following characteristics:

• • 1. Plants of the new Gaillardia are more vigorous and more outwardly spreading than plants of the male parent selection.
  • 2. Margins of leaves of plants of the new Gaillardia are irregularly and shallowly dentate whereas margins of leaves of plants of the male parent selection are entire.
  • 3. Disc florets of plants of the new Gaillardia are sterile whereas disc florets of plants of the male parent selection are fertile.

Plants of the new Gaillardia can be compared to plants of Gaillardia x grandiflora ‘Celebration’, disclosed in U.S. Plant Pat. No. 26,969. In side-by-side comparisons, plants of the new Gaillardia differ from plants of ‘Celebration’ in the following characteristics:

• • 1. Plants of the new Gaillardia are more vigorous than and not as compact as plants of ‘Celebration’.
  • 2. Margins of leaves of plants of the new Gaillardia are irregularly and shallowly dentate whereas margins of leaves of plants of ‘Celebration’ are mostly entire.
  • 3. Leaves of plants of the new Gaillardia are more resistant to leaf pathogens than leaves of plants of ‘Celebration’.
  • 4. Plants of the new Gaillardia flower throughout the summer whereas plants of ‘Celebration’ typically only flower until mid to late summer in Central Pennsylvania.
  • 5. Disc florets of plants of the new Gaillardia are sterile whereas disc florets of plants of ‘Celebration’ are fertile.

Plants of the new Gaillardia can also be compared to plants of Gaillardia x grandiflora ‘Fanfare’, disclosed in U.S. Plant Pat. No. 15,892. In side-by-side comparisons, plants of the new Gaillardia differ from plants of ‘Fanfare’ in the following characteristics:

• • 1. Plants of the new Gaillardia are more vigorous than and not as compact as plants of ‘Fanfare’.
  • 2. Margins of leaves of plants of the new Gaillardia are irregularly and shallowly dentate whereas margins of leaves of plants of ‘Fanfare’ are mostly entire.
  • 3. Leaves of plants of the new Gaillardia are more resistant to leaf pathogens than leaves of plants of ‘Fanfare’.
  • 4. Plants of the new Gaillardia flower throughout the summer whereas plants of ‘Fanfare’ typically only flower until mid to late summer in Central Pennsylvania.
  • 5. Ray florets of plants of the new Gaillardia are obovate in shape whereas ray florets of plants of ‘Fanfare’ are quilled.
  • 6. Disc florets of plants of the new Gaillardia are sterile whereas disc florets of plants of ‘Fanfare’ are fertile.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Gaillardia 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 Gaillardia plant.

At the top of the photographic sheet (FIG. 1) is a side perspective view of a typical flowering plant of ‘G15272’ grown in a container and at the bottom of the photographic sheet is a close-up view of a typical flowering plant of ‘G15272’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown during the spring and summer in 15.25-cm containers in a polyethylene-covered greenhouse in St. Thomas, Ontario, Canada and under cultural practices typical of commercial Gaillardia production. During the production of the plants, day temperatures averaged 27° C. and night temperatures averaged 15° C. Plants were pinched at planting and were ten weeks from planting rooted cuttings when the photographs and description were 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: Gaillardia sp. X Gaillardia x grandiflora ‘G15272’.
• Parentage:
  • • Female, or seed, parent.—Proprietary selection of Gaillardia sp. identified as code number G2X-32015-2, not patented.
    • Male, or pollen, parent.—Proprietary selection of Gaillardia x grandiflora identified as code number G2X-32014-1, not patented.
• Propagation:
  • • Type.—Terminal vegetative cuttings.
    • Time to initiate roots, summer and winter.—About two to three weeks at soil temperatures about 22.2° C. and ambient temperatures about 18.3° C.
    • Time to produce a rooted young plant from an unrooted cutting, summer and winter.—About six to eight weeks at soil temperatures about 22.2° C. and ambient temperatures about 18.3° C.
    • Root description.—Medium in thickness, fibrous; typically white to creamy white in color, actual color of the roots is dependent on substrate composition, water quality, fertilizer type and formulation, substrate temperature and physiological age of roots.
    • Rooting habit.—Moderately freely branching, medium density.
• Plant description:
  • • Plant and growth habit.—Herbaceous perennial; upright to outwardly spreading plant habit; vigorous growth habit and moderate growth rate; freely branching habit with about five primary branches each with about four to six secondary branches and each with about three to four tertiary branches developing per plant; dense and bushy appearance.
    • Plant height.—About 40.9 cm.
    • Plant width.—About 58.9 cm.
    • Lateral branch description.—Length: About 23.2 cm. Diameter: About 3.6 mm. Internode length: About 2.4 cm. Strength: Strong. Aspect: Upright to about 45° from vertical. Texture and luster: Moderately pubescent; matte. Color, developing: Close to 138C. Color, developed: Close to 138B.
    • Leaf description.—Arrangement: Alternate, simple; sessile. Length: About 7.7 cm. Width: About 2.6 cm. Shape: Oblanceolate. Apex: Mucronate. Base: Sessile, clasping. Margin: Entire or irregularly and shallowly lobed; lobing becoming deeper with development. Texture and luster, upper and lower surfaces: Moderately pubescent; matte. Venation pattern: Pinnate. Color: Developing leaves, upper and lower surfaces: Close to 147B. Fully developed leaves, upper surface: Close to 147B; venation, close to 147D. Fully developed leaves, lower surface: Close to 147B; venation, close to 147C.
• Inflorescence description:
  • • Appearance.—Single inflorescence form with ray and disc florets; inflorescences held mostly upright on strong peduncles; ray and disc florets develop acropetally on a capitulum; inflorescences face upright to outwardly.
    • Fragrance.—Faintly fragrant; sweet and pleasant.
    • Flowering response.—Plants begin flowering about eight weeks after planting; plants flower naturally from late spring until the autumn in Central Pennsylvania.
    • Postproduction longevity.—Inflorescences maintain good substance for about four to six weeks on the plant; inflorescences persistent.
    • Quantity of inflorescences.—Freely flowering habit, about 136 inflorescences develop per plant during the flowering season.
    • Inflorescence size.—Diameter: About 7 cm. Height: About 1.9 cm. Disc diameter: About 2.8 cm.
    • Receptacles.—Height: About 4 mm. Diameter: About 1 cm. Color: Close to 155C.
    • Inflorescence buds.—Height: About 1 cm. Diameter: About 1 cm. Shape: Round. Texture and luster: Pubescent; matte. Color: Close to 138B; immature ray florets, close to 187C.
    • Ray florets.—Quantity per inflorescence: About 18 arranged in a single whorl. Length: About 3.2 cm. Width: About 1.9 cm. Shape: Obovate. Apex: Emarginate or tridentate. Base: Attenuate. Margin: Entire; not undulate. Aspect: Initially, upright to semi-erect and becoming horizontal and reflexed with development. Texture and luster, upper surface: Smooth, glabrous; moderately glossy. Texture and luster, lower surface: Sparsely pubescent; moderately glossy. Color: When opening, upper surface: Close to 35A; towards the base, close to 47B and at the base, close to 53A; at the apex, close to 9A. When opening, lower surface: Close to 32C; at the base, close to 53A to 53B; at the apex, close to 9A. Fully opened, upper surface: Close to 34C; at the base, close to 53A to 53B; at the apex, close to 9A; with development, color becoming closer to 34B to 34C, at the base, close to 47A and at the apex, close to 9A; venation, close to 53B. Fully opened, lower surface: Close to 170B to 170C; at the base, close to 184C; at the apex, close to 9A; with development, color becoming closer to 35C, at the base, close to 51B and at the apex, close to 9A; venation, close to N186D.
    • Disc florets.—Quantity per inflorescence: More than 100 massed at the center of the receptacle in about six whorls. Length: About 9.2 mm. Diameter: About 10.5 mm. Shape: Fused tubular. Apex: Acute. Texture and luster, inner and outer surfaces: Pubescent; moderately glossy. Color, inner surface: Apex: Close to 187B. Mid-section: Close to 9A. Base: Close to 149D. Color, outer surface: Apex: Close to 180A. Mid-section: Close to 185D. Base: Close to 149D.
    • Involucral bracts.—Quantity per inflorescence: About 30 arranged in about four whorls. Length: About 9.2 mm. Width: About 4 mm. Shape: Narrowly deltoid. Apex: Long acuminate. Base: Truncate. Margin: Entire, ciliate. Texture and luster, upper and lower surfaces: Pubescent; matte. Color, upper surface: Close to 138A. Color, lower surface: Close to 138B.
    • Peduncles.—Length: About 14.3 cm. Diameter: About 1.9 mm. Strength: Strong. Aspect: Upright to semi-upright. Texture and luster: Moderately pubescent; matte. Color: Close to 138B.
    • Reproductive organs.—Androecium: Present on disc florets only. Quantity per floret: Five. Filament length: About 4 mm. Filament color: Close to 150D. Anther length: About 4 mm. Anther shape: Oblong. Anther color: Close to 22A. Pollen amount: Abundant. Pollen color: Close to 23A. Gynoecium: Present on disc florets only. Quantity per floret: One. Pistil length: About 9 mm. Stigma diameter: About 1 mm. Stigma shape: Two-lobed. Stigma color: Close to 59A. Style length: About 6 mm. Style color: Close to 150D. Ovary color: Close to 144C.
    • Seeds and fruits.—To date, seed and fruit production have not been observed on plants of the new Gaillardia as disc florets of plants of the new Gaillardia are sterile.
• Pathogen & pest resistance: Plants of the new Gaillardia have been observed to tolerate Gaillardia Leaf Smut (Entyloma gaillardianum). To date, plants of the new Gaillardia have not been observed to be resistant to pests and other pathogens common to Gaillardia plants.
• Garden performance: Plants of the new Gaillardia have been observed to have good garden performance and to tolerate wind and rain and temperatures ranging from 13° C. to 38° C.

Claims

1. A new and distinct Gaillardia plant named ‘G15272’ as illustrated and described.