plant named ‘HYLV17520’

A new and distinct cultivar of Hydrangea plant named ‘HYLV17520’, characterized by its relatively compact, upright to broadly spreading and mounding plant habit; moderately vigorous growth habit; freely branching habit; strong and sturdy stems; freely flowering habit; panicles with yellowish green-colored sterile flowers that become reddish pink in color with subsequent development; and good garden performance.

Skip to: Description  ·  Claims  · Patent History  ·  Patent History
Description

Botanical designation: Hydrangea paniculata.

Cultivar denomination: ‘HYLV17520’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

U.S. Plant patent application Ser. No. 18/101,575:

Title: Hydrangea Plant Named ‘HYLV17522’

Inventor: Lendert de Vos

Applicant: Kwekerij Lendert de Vos

Filed: Jan. 25, 2023

A Provisional U.S. Patent application for this plant was filed by the Inventor on Mar. 17, 2022, application Ser. No. 63/321,096.

Priority is claimed to this Provisional U.S. Patent application.

An European Community Plant Breeder's Rights application for this plant was filed by the Applicant/Assignee of the instant application, Kwekerij Lendert de Vos of Reeuwijk, The Netherlands on Sep. 24, 2021, application number 2021/2375. Foreign priority is not claimed to this European Plant Breeder's Rights application.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Hydrangea plant, botanically known as Hydrangea paniculata, commercially referred to as a Paniculated Hydrangea and hereinafter referred to by the name ‘HYLV17520’.

The new Hydrangea plant is a product of a planned breeding program conducted by the Inventor in Reeuwijk, The Netherlands. The objective of the breeding program is to create new compact and strong Hydrangea plants with attractive inflorescences and good postproduction longevity.

The new Hydrangea plant originated from an open-pollination during the summer of 2015 of a proprietary selection of Hydrangea paniculata identified as code number P13502, not patented, as the female, or seed, parent with an unknown selection of Hydrangea paniculata as the male, or pollen, parent. The new Hydrangea plant was discovered and selected as a single flowering plant from within the progeny of the stated open-pollination in a controlled greenhouse environment in Reeuwijk, The Netherlands in August, 2017.

Asexual reproduction of the new Hydrangea plant by terminal vegetative cuttings since August, 2017 in a controlled greenhouse environment in Reeuwijk, The Netherlands has shown that the unique features of this new Hydrangea plant are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE NEW PLANT

Plants of the new Hydrangea 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 ‘HYLV17520’. These characteristics in combination distinguish ‘HYLV17520’ as a new and distinct Hydrangea plant:

    • 1. Relatively compact, upright to broadly spreading and mounding plant habit.
    • 2. Moderately vigorous growth habit.
    • 3. Freely branching habit.
    • 4. Strong and sturdy stems.
    • 5. Freely flowering habit.
    • 6. Panicles with yellowish green-colored sterile flowers that become reddish pink in color with subsequent development.
    • 7. Good garden performance.

Plants of the new Hydrangea can be compared to plants of the female parent selection. Plants of the new Hydrangea differ primarily from plants of the female parent selection in the following characteristics:

    • 1. Plants of the new Hydrangea have smaller sterile flowers than plants of the female parent selection.
    • 2. Sterile flowers of plants of the new Hydrangea are yellowish green in color becoming reddish pink at the end of the flowering season whereas sterile flowers of plants of the female parent selection are white in color.
    • 3. Sepal apices of sterile flowers of plants of the new Hydrangea are more rounded than and not as acute as sepal apices of sterile flowers of plants of the female parent selection.

Plants of the new Hydrangea can be compared to plants of Hydrangea paniculata ‘HYLV17522’, disclosed in U.S. Plant patent application Ser. No. 18/101,575 filed concurrently. In side-by-side comparisons, plants of the new Hydrangea differ primarily from plants of ‘HYLV17522’ in the following characteristics:

    • 1. Plants of the new Hydrangea are shorter and more upright than plants of ‘HYLV17522’.
    • 2. Plants of the new Hydrangea have shorter leaves than plants of ‘HYLV17522’.
    • 3. Inflorescences of plants of the new Hydrangea are shorter and broader than inflorescences of plants of ‘HYLV17522’.
    • 4. Inflorescences of plants of the new Hydrangea have fewer sterile flowers than inflorescences of plants of ‘HYLV17522’.

Plants of the new Hydrangea can also be compared to plants of Hydrangea paniculata ‘Pink Diamond’, not patented. In side-by-side comparisons, plants of the new Hydrangea differ primarily from plants of ‘Pink Diamond’ in the following characteristics:

    • 1. Plants of the new Hydrangea are more compact and shorter than plants of ‘Pink Diamond’.
    • 2. Inflorescences of plants of the new Hydrangea are smaller and denser than inflorescences of plants of ‘Pink Diamond’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the unique appearance of the new Hydrangea 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 from the color values cited in the detailed botanical description which accurately describe the colors of the new Hydrangea plant.

FIG. 1 is a side perspective view of a typical flowering plant of ‘HYLV17520’ grown in a container.

FIG. 2 is a close-up view of typical inflorescences of ‘HYLV17520’.

FIG. 3 is a close-up view of typical inflorescences of ‘HYLV17520’ at the end of the flowering season.

FIG. 4 is a close-up view of typical leaves of ‘HYLV17520’.

 DETAILED BOTANICAL DESCRIPTION

Plants used in the aforementioned photographs and in the following description were grown during the summer in 21-cm containers in an outdoor nursery in Reeuwijk, The Netherlands and under cultural practices typical of commercial Hydrangea production. During the production of the plants, day temperatures ranged from 18° C. to 30° C., night temperatures ranged from 8° C. to 18° C. Plants of the new Hydrangea were pinched in the early summer. Plants were three years old when the photographs and description were 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. Paniculated Hydrangea plants are not typically treated with aluminum sulfate to “blue” the flower color.

  • Botanical description: Hydrangea paniculata ‘HYLV17520’.
  • Parentage:
      • Female, or seed, patent.—Proprietary selection of Hydrangea paniculata identified as code number P13502, not patented.
      • Male, or pollen, patent.—Unknown selection of Hydrangea paniculata, not patented.
  • Propagation:
      • Type cutting.—By vegetative terminal cuttings.
      • Time to initiate roots, summer.—About 16 days at temperatures ranging from 20° C. to 30° C.
      • Time to produce a rooted young plant, summer.—About four months at temperatures ranging from 20° C. to 30° C.
      • Root description.—Medium in thickness to thick; fibrous; typically light brown 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.—Freely branching; dense.
  • Plant description:
      • Plant and growth habit.—Relatively compact; upright to broadly outwardly spreading and mounding plant habit; flattened broadly obovate in overall shape; strong and sturdy stems; moderately vigorous growth habit and moderate growth rate; about one year from propagation are required to produce small finished plants.
      • Plant height.—About 44.5 cm.
      • Plant diameter or area of spread.—About 51 cm.
  • Lateral branch description:
      • Branching habit.—Freely branching habit with about 14 lateral branches developing per plant; pinching is not required, but will enhance lateral branch development.
      • Length.—About 22.8 cm.
      • Diameter.—About 5.5 mm.
      • Internode length.—About 4.3 cm.
      • Strength.—Strong, sturdy.
      • Aspect.—Erect to about 55° from vertical.
      • Texture.—Moderately pubescent; becoming woody with subsequent development.
      • Color, developing.—Close to 148A; at the nodes, slightly tinged with close to 176A.
      • Color, fully developed.—Close to N199B and N199C; when woody, close to 199B to 199D.
      • Lenticels.—Density: Medium density. Length: About 1.25 mm. Diameter: About 0.5 mm. Color: Close to 164D to lighter than 164D.
  • Leaf description:
      • Arrangement.—Opposite or in whorls of three, simple.
      • Length.—About 7.4 cm.
      • Width.—About 4.8 cm.
      • Shape.—Ovate; slightly to moderately carinate.
      • Apex.—Apiculate.
      • Base.—Obtuse to short attenuate.
      • Margin.—Serrate.
      • Texture and luster, upper and lower surfaces.—Moderately pubescent; matte.
      • Venation pattern.—Pinnate.
      • Color.—Developing leaves, upper surface: Close to 143A. Developing leaves, lower surface: Close to 144A. Fully developed leaves, upper surface: Close to NN137B; venation, close to 148A. Fully developed leaves, lower surface: Close to 147B; venation, close to 146C to 146D.
      • Petioles.—Length: About 1.1 cm. Diameter: About 2.5 mm. Texture and luster, upper and lower surfaces: Sparsely pubescent; slightly glossy. Color, upper surface: Close to 146B; margins, close to 166A. Color, lower surface: Close to 146C to 146D.
  • Flower description:
      • Flower type and habit.—Showy rotate sterile flowers and small, inconspicuous rotate fertile flowers arranged on terminal panicles; panicles irregular broadly conical to close to rhomboidal in shape; sterile flowers face upright, outwardly to drooping and fertile flowers face mostly upright.
      • Fragrance.—Moderately fragrant; sweet and pleasant.
      • Natural flowering season.—In the garden, plants flower continuously from the midsummer to late summer in The Netherlands.
      • Flower longevity.—Good postproduction longevity; sterile flowers maintain good substance for about six weeks on the plant, sterile flowers persistent; fertile flowers last for about five days on the plant, fertile flowers not persistent.
      • Quantity of flowers.—Freely flowering habit; about 600 sterile flowers per panicle and about 650 fertile flowers per panicle.
      • Panicle height.—About 16.9 cm.
      • Panicle diameter.—About 18.3 cm.
      • Panicle peduncles.—Length: About 15.4 cm. Diameter: About 2.5 mm. Strength: Moderately strong. Aspect: Primary peduncles, mostly erect; lateral peduncles, about 45° from primary peduncle axis. Texture and luster: Densely pubescent; matte. Color: Close to 146C.
      • Sterile flower buds.—Length: About 9 mm. Diameter: About 9 mm. Shape: Cup-shaped. Color: Close to 144D.
      • Fertile flower buds.—Length: About 3 mm. Diameter: About 2 mm. Shape: Broadly obovate. Color: Close to 157B.
      • Sterile flower diameter.—About 2.9 cm.
      • Sterile flower depth (height).—About 6 mm.
      • Fertile flower diameter.—About 5 mm.
      • Fertile flower depth (height).—About 5 mm.
      • Petals, sterile flowers.—Quantity and arrangement: Four in a single whorl. Length: About 3 mm. Width: About 1.25 mm. Shape: Ovate. Apex: Acute. Base: Cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; slightly glossy. Color: When opening and fully opened, upper surface: Close to NN155D; color does not change with subsequent development. When opening and fully opened, lower surface: Close to NN155D; color does not change with subsequent development.
      • Petals, fertile flowers.—Quantity and arrangement: Five in a single whorl. Length: About 3 mm. Width: About 1.5 mm. Shape: Ovate, slightly concave. Apex: Acute. Base: Cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; slightly glossy. Color: When opening and fully opened, upper surface: Close to NN155D; color does not change with subsequent development. When opening and fully opened, lower surface: Close to NN155D; color does not change with subsequent development.
      • Sepals, sterile flowers.—Quantity and arrangement: Typically four, or occasionally three or five, arranged in a single whorl. Length: About 1.4 cm. Width: About 9 mm. Shape: Elliptic to slightly obovate. Apex: Obtuse. Base: Cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening, upper surface: Close to 145B; towards the base, close to a blend of 145B and 145C. When opening, lower surface: Close to a blend of 145D and 150D. Fully opened, upper surface: Close to a blend of 150C and 154C; with subsequent development, color becoming closer to 143B and fading to close to 145A and variably tinged with close to 52B. Fully opened, lower surface: Close to 145C; towards the margins, close to a blend of 150C and 150D; with subsequent development, color becoming closer to 145A and 145B and eventually, close to 53C.
      • Sepals, fertile flowers.—Quantity and arrangement: Five in a single whorl. Length: About 1 mm. Width: About 1 mm. Shape: Deltoid. Apex: Broadly acuminate. Base: Broadly cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening and fully opened, upper surface: Close to 145C; color does not change with subsequent development. When opening and fully opened, lower surface: Close to 145C; color does not change with subsequent development.
      • Pedicels, sterile flowers.—Length: About 2.7 cm. Diameter: About 1 mm. Strength: Moderately strong. Aspect: About 35° from main peduncle axis. Texture and luster: Moderately pubescent; matte. Color: Close to 157D.
      • Pedicels, fertile flowers.—Length: About 2 mm. Diameter: About 0.75 mm. Strength: Moderately strong. Aspect: About 5° from vertical. Texture and luster: Moderately pubescent; matte. Color: Close to 145D.
      • Reproductive organs, sterile flowers.—Stamens: Quantity per flower: Eight. Filament length: About 2.5 mm. Filament color: Close to NN155B. Anther shape: Oblong. Anther length: About 0.5 mm. Anther color: Close to 156D to lighter than 156D. Pollen amount: Scarce. Pollen color: Close to 195D. Pistils: Pistil quantity per flower: Two. Pistil length: About 2 mm. Stigma shape: Club-shaped. Stigma color: Close to 155C. Style length: About 1.75 mm. Style color: Close to NN155A.
      • Reproductive organs, fertile flowers.—Stamens: Quantity per flower: Ten. Filament length: About 2.75 mm. Filament color: Close to NN155D. Anther shape: Oblong. Anther length: About 0.5 mm. Anther color: Close to 156D to lighter than 156D. Pollen amount: Scarce. Pollen color: Close to 195D. Pistils: Pistil quantity per flower: Two or occasionally, three. Pistil length: About 2 mm. Stigma shape: Club-shaped. Stigma color: Close to 155C. Style length: About 1.75 mm. Style color: Close to 155C. Ovary color: Close to 145B to 145C.
      • Seed.—To date, seed development has not been observed on plants of the new Hydrangea.
  • Pathogen & pest resistance: Plants of the new Hydrangea have not been observed to be resistant to pathogens and pests common to Hydrangea plants.
  • Temperature tolerance: Plants of the new Hydrangea have been shown to be suitable for USDA Hardiness Zones 5 through 9.

Claims

1. A new and distinct Hydrangea plant named ‘HYLV17520’ as illustrated and described.

Patent History
Patent number: PP36305
Type: Grant
Filed: Jan 25, 2023
Date of Patent: Dec 10, 2024
Patent Publication Number: 20240251691
Assignee: KWEKERIJ LENDERT de VOS B.V. (Reeuwijk)
Inventor: Lendert de Vos (Reeuwijk)
Primary Examiner: Kent L Bell
Application Number: 18/101,574
Classifications
Current U.S. Class: Hydrangea (PLT/250)
International Classification: A01H 5/02 (20180101); A01H 6/48 (20180101);