plant named ‘Dranbor3269’

Abstract

A new and distinct cultivar of hydrangea plant, referred to by its cultivar name, ‘Dranbor3269’, is disclosed. The new variety forms, light pink-colored inflorescences which age from light pink to almost white. Sturdy stems which aid against flopping are formed. A compact, upright growth habit is displayed. The new variety is well suited for providing distinguished ornamentation in the landscape.

Description

Latin name of genus and species of plant claimed: Hydrangea arborescens.

Variety denomination: ‘Dranbor3269’.

STATEMENT REGARDING PRIOR DISCLOSURES BY THE INVENTOR

The first offer for sale of the new variety was July 2024, in the United States of America, at the New Varieties Showcase at the Cultivate Trade Show in Columbus, Ohio, followed by the publication of the 2025 Star Roses and Plants Woody Ornamentals & Edibles Catalog released Oct. 7, 2024. The first offer for sale of the new variety was by an inventor or another who obtained the new variety directly or indirectly from an inventor. No plants of the new variety have been sold in this country or anywhere in the world, nor has any disclosure of the new plant been made, more than one year prior the effective filing date of this application, and such sale or disclosure within one year was either derived directly or indirectly from the inventor.

BACKGROUND OF THE INVENTION

The new cultivar originated in Cochranville, Pennsylvania during the summer of 2013 in a controlled breeding program. The breeding program's objective was to develop hydrangea cultivars that have improved growth habits and flowering capacity. The new cultivar is the result of cross pollination. The female parent (i.e., the seed parent) of the new cultivar is Hydrangea arborescens ‘NCHA1’ (U.S. Plant Pat. No. 20,765). The male parent (i.e., the pollen parent) of the new cultivar is Hydrangea arborescens ‘PIIHA-I’ (U.S. Plant Pat. No. 21,227).

The parentage of the new variety can be summarized as follows:

‘NCHA1’ x ‘PIIHA-I’

The new cultivar was discovered and selected as a single flowering plant within the progeny of the above stated cross-pollination in Cochranville, Pennsylvania, which was grown in a greenhouse.

The new variety has been found to undergo asexual propagation in Cochranville, Pennsylvania by terminal stem cuttings since Fall 2014. Asexual propagation by terminal stem cuttings in Cochranville, Pennsylvania has shown that the characteristics of the new variety are stable and are strictly transmissible by asexual propagation from one generation to another. Accordingly, the new variety undergoes asexual propagation in a true-to-type manner.

SUMMARY OF THE INVENTION

It was found that the new variety of hydrangea plant of the present invention possesses the following combination of characteristics:

• • (a) forms light pink-colored inflorescences which age from light pink to almost white, and
  • (b) displays a compact, upright growth habit.

The new variety well meets the needs of the horticultural industry. It can be grown to advantage as ornamentation in parks, gardens, public areas, and in residential settings. Accordingly, the plant is particularly well suited for growing in the landscape.

The new variety of the present invention can readily be distinguished from its ancestors. More specifically, plants of the new cultivar differ from plants of the ‘NCHA1’ variety (i.e., the seed parent) in that the new cultivar is more floriferous, has inflorescences with a color that ages more quickly to pink, and has an improved growth habit that is tighter and more compact. Additionally, plants of the new cultivar differ from plants of the ‘PIIHA-I’ variety (i.e., the pollen parent) in that the new cultivar forms light pink-colored inflorescence which age to almost white, whereas the ‘PIIHA-I’ forms magenta to pink colored inflorescences.

Moreover, the new variety can be readily distinguished from other similar non-parental varieties. Of the many commercially available Hydrangea cultivars, the most similar in comparison to the new cultivar is the ‘NCHA2’ variety (U.S. Plant Pat. No. 28,316). However, in comparison, plants of the new cultivar differ from plants of the ‘NCHA2’ variety at least because the new cultivar has sturdier stems than plants of the ‘NCHA2’ variety, has inflorescences that are lighter pink than the inflorescences of the ‘NCHA2’ variety, and has a more compact and upright growth habit than plants of the ‘NCHA2’ variety.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs show, as nearly true as it is reasonably possible to make the same in color illustrations of this type, typical flower and foliage characteristics of a plant of the new cultivar. Colors in the photographs differ slightly from the color values cited in the detailed description, which accurately describes the colors of the ‘Dranbor3269’ variety. The plant of the new cultivar was approximately two years old and was observed in August 2023, while growing in a three-gallon container in Cochranville, Pennsylvania, U.S.A.

FIG. 1 — illustrates a side view of the overall growth and flowering habit.

FIG. 2 — illustrates a closeup view of the inflorescence.

DETAILED BOTANICAL DESCRIPTION

The chart used in the identification of the colors is that of The Royal Horticultural Society (The R.H.S. Colour Chart, 2015 edition), London, England, except where general color terms of ordinary significance are used. The terminology which precedes reference to the chart has been added to indicate the corresponding color in more common terms and The R.H.S. Colour Chart designation used herein represents the closest color observed on the majority of the specified botanical feature. The color values were determined in June 2024, under natural light conditions in Cochranville, Pennsylvania. The description is based on the observation of plants produced from cuttings from stock plants and grown in three-gallon containers for approximately two years in an outdoor nursery in Cochranville, Pennsylvania. Measurements and numerical values represent averages of typical plants.

• Botanical classification: Hydrangea arborescens cultivar ‘Dranbor3269’.
• Parentage:
  • • Female parent.—Hydrangea arborescens ‘NCHA1’.
    • Male parent.—Hydrangea arborescens ‘PIIHA-I’.
• Propagation:
  • • Type cutting.—Terminal stem cuttings.
    • Time to initiate roots during the summer.—Approximately 14 days.
    • Time to initiate roots during the winter.—Approximately 21 days.
    • Root description.—White, fine, fibrous.
    • Rooting habit.—Moderate branching and density.
• Plant description:
  • • Commercial crop time.—Approximately 24 months from a rooted cutting to finish in a 3-gallon pot.
    • Growth habit and general appearance.—Deciduous shrub, moderately vigorous, and upright growth habit.
    • Amount of plant growth per growing season.—Approximately 12-14 inches in height.
    • Hardiness.—USDA Zones 3-8.
    • Size.—Height from soil level to top of plant plane: approximately 66.0 cm on average. width: approximately 60.0 cm on average.
    • Branching habit.—Freely branching; pinching enhances branching. quantity of lateral branches per plant: approximately 12.
    • Branches.—Shape: rounded. —Length to base of inflorescence: approximately 50.0 cm on average. —Diameter: approximately 5.0 mm on average. —Length of central internode: approximately 9.0 cm on average. —Texture of young stem: sparsely pubescent. —Texture of mature stem: woody. —Color of young stem: Yellow-Green Group 144C. —Color of mature stem: Grey-Brown Group 199C. —Quantity of lenticels per internode: approximately 35 on average. —Size of stem's lenticel: typically 0.5 mm to 1.0 mm in diameter. —Shape of stem's lenticel: round to elliptic. —Color of stem's lenticel: Grey-Brown Group 199D.
• Foliage:
  • • General description.—Quantity of leaves per lateral branch: approximately 10 on average. —Fragrance: none detected. —Form: simple. —Arrangement: opposite.
    • Leaves.—Aspect: flat. —Shape: elliptic. —Margin: serrated. —Apex: acuminate. —Base: rounded. —Venation pattern: pinnate. —Length of mature leaf: approximately 12.0 cm on average. —Width of mature leaf: approximately 7.0 cm on average. —Texture of upper surface: coriaceous, sparsely pubescent. —Texture of lower surface: coriaceous, sparsely pubescent. —Color of upper surface of young foliage: Green Group 137C with venation of Green Group 139C. —Color of lower surface of young foliage: Yellow-Green Group 148B with venation of Yellow-Green Group 148D. —Color of upper surface of mature foliage: Green Group 139A with venation of Green Group 138B. —Color of lower surface of mature foliage: Greyed-Green Group 191A with venation of Yellow-Green Group 148D.
    • Petiole.—Length: approximately 4.0 cm on average. —Diameter: approximately 4.0 mm on average. —Texture of upper and lower surfaces: sparsely pubescent. —Color: Yellow-Green Group N148A.
• Flowering description:
  • • Flower type and habit.—Single fertile and sterile flowers arranged on large terminal panicles.
    • Fragrance.—None detected.
    • Natural flowering season.—Seasonal, continuously flowering from summer through fall in Cochranville, Pennsylvania.
    • Lastingness of individual inflorescence on the plant.—Persistent.
• Inflorescence:
  • • General description.—Height: approximately 8.0 cm on average. —Width: approximately 15.0 cm on average. —Shape: terminal mop-head. —Quantity per plant: one per lateral or sublateral stem. —Aspect: face upward. —Quantity of fertile florets per inflorescence: approximately 450 on average. —Quantity of sterile florets per inflorescence: approximately 450 on average.
    • Peduncle.—Shape: rounded. —Length: approximately 2.5 cm on average. —Diameter: approximately 2.0 mm on average. —Texture: tomentose. —Color: Yellow-Green Group 146D.
• Floret description:
  • • General description.—Type: single, sterile and fertile flowers.
    • Fertile flowers.—Flower diameter: approximately 5.0 mm on average. —Flower depth (height): approximately 4.0 mm on average. —Flower bud length, just before opening: approximately 3.0 mm on average. —Flower bud diameter, just before opening: approximately 2.5 mm on average. —Flower bud shape, just before opening: globular. —Flower bud color, just before opening: White Group 155C. —Petal length: approximately 2.0 mm on average. —Petal width: approximately 1.0 mm on average. —Petal shape: cymbiform. —Petal apex: acute. —Petal base: truncate. —Petal margin: entire. —Petal texture of upper and lower surfaces: glabrous. —Petal color: when first open, upper surface: White Group 155B. when first open, lower surface: White Group 155B. —Pedicel: aspect: erect. length: approximately 3.0 mm on average. diameter: typically less than 1.0 mm. texture: glabrous. color: Yellow-Green Group 145B.
    • Sterile flowers.—Flower diameter: approximately 2.0 cm on average. —Flower depth (height): approximately 5.0 mm on average. —Flower bud length, just before opening: approximately 2.0 mm on average. —Flower bud diameter, just before opening: approximately 1.5 mm on average. —Flower bud shape, just before opening: globular. —Flower bud color, just before opening: Yellow-Green Group 144B. —Sepals: quantity per flower. typically 3 to 4. length: approximately 1.2 cm on average. width: approximately 1.1 cm on average. shape: elliptic. apex: broadly acute. base: cuneate. margin: entire. texture, upper surface: glabrous. texture, lower surface: glabrous. color. when first open, upper surface: Red-Purple Group 65B. when first open, lower surface: Red-Purple Group 63B. —Pedicel: aspect: erect. length: approximately 1.5 cm on average. diameter: approximately 1.0 mm on average. texture: sparsely pubescent. color: Yellow-Green Group 145B.
    • Reproductive organs, fertile flowers.—Stamens: quantity per flower: approximately 10 on average. stamen length: typically 3.0 mm to 6.0 mm. anther shape: round. anther length: approximately 0.5 mm on average. anther color: White Group 155A. pollen amount: very sparse. pollen color: White Group 155C. pistil quantity per flower: two, fused. pistil length: approximately 1.0 mm on average. stigma shape: oval. stigma color: White Group NN155A. style length: typically less than 1.0 mm. style color: White Group 155A. ovary color: White Group 155A.
• Development:
  • • Seed and fruit production.—Neither seed nor fruit production has been observed.
    • Disease and pest resistance.—Resistance to pathogens and pests common to Hydrangea has not been observed.

The new ‘Dranbor3269’ cultivar has not been observed under all possible environmental conditions to date. Accordingly, it is possible that the phenotype may vary somewhat with variations in the environment, such as temperature, light intensity, and day length, without, however, any variance in genotype.

Claims

1. A new and distinct variety of hydrangea plant named ‘Dranbor3269’ characterized by the following combination of characteristics: substantially as herein shown and described.

(a) forms light pink-colored inflorescences which age from light pink to almost white, and

(b) displays a compact, upright growth habit;