Hydrangea plant named 'LC NO10'

Abstract

A new and distinct cultivar of Hydrangea plant named LC NO10, characterized by its upright to outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers that age attractively to purplish pink in color with development; and good garden performance.

Claims

1. A new and distinct Hydrangea plant named LC NO10 as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

[0038] 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.

[0039] 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.

[0040] The photograph on the first sheet is a side perspective view of a typical flowering plant of LC NO10 grown in a container.

[0041] The photographs on the second sheet are close-up views of a typical leaf (top of sheet) and a typical inflorescence (bottom of sheet) of LC NO10.

DETAILED BOTANICAL DESCRIPTION

[0042] Plants used in the aforementioned photographs and in the following description were grown during the late summer in 21-cm containers in an outdoor nursery in Boskoop, The Netherlands and under cultural practices typical of commercial Hydrangea production. During the production of the plants, day temperatures ranged from about 16 C. to 35 C. and night temperatures ranged from about 12 C. to 22 C. Plants of the new Hydrangea were pinched one time and were two years old when the photographs and description were taken. As a Hardy or Panicled Hydrangea, plants of the new Hydrangea are typically not treated with aluminum sulfate to blue the inflorescences. 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. [0043] Botanical description: Hydrangea paniculata LC NO10. [0044] Parentage: [0045] Female, or seed, parent.Hydrangea paniculata Silver Dollar, not patented. [0046] Male, or pollen, parent.Hydrangea paniculata Vanille Fraise, not patented. [0047] Propagation: [0048] Type cutting.By vegetative tip cuttings. [0049] Time to initiate roots, summer.About 16 days at temperatures about 16 C. to 30 C. [0050] Time to produce a rooted young plant, summer: About 120 days at temperatures about 16 C. to 30 C. [0051] Root description.Medium in thickness, 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. [0052] Rooting habit.Freely branching; dense. [0053] Plant description: [0054] Plant and growth habit.Upright to outwardly spreading and uniform plant habit; overall plant shape, flattened globular to broad inverted triangular; strong and sturdy stems; moderately vigorous growth habit and low to moderate growth rate. [0055] Plant height.About 44.5 cm. Plant diameter or area of spread: About 67.8 cm. [0056] Lateral branch description: [0057] Branching habit.About twelve lateral branches develop per plant; pinching enhances lateral branch development. [0058] Length.About 28.2 cm. [0059] Diameter.About 4 mm. [0060] Internode length.About 5.4 cm. [0061] Texture.When developing, sparsely pubescent; fully developed, woody. [0062] Aspect.Upright to about 25 to 40 from vertical. [0063] Strength.Strong, sturdy. [0064] Color.When developing: Upper surface, tinged with close to 183C; lower surface, close to 148C to 148D. Developed: Close to 200D; when woody, close to 199A to 199B. [0065] Lenticels.Density: Sparse; none observed on developing stems. Size, developed stems: About 1 mm by 0.75 mm. Color, developed stems: Close to 165C. [0066] Leaf description: [0067] Arrangement.Opposite or in whorls of three, simple. [0068] Length.About 10.5 cm. [0069] Width.About 5.1 cm. [0070] Shape.Ovate to narrowly ovate. [0071] Apex.Acute to slightly apiculate. [0072] Base.Short acute to obtuse. [0073] Margin.Serrate; slightly and coarsely undulate. [0074] Texture, upper and lower surfaces.Moderately pubescent; slightly rough. [0075] Venation pattern.Pinnate. [0076] Color.Developing leaves, upper surface: Close to 143B. Developing leaves, lower surface: Close to 147D. Fully developed leaves, upper surface: Close to between 143A and 144A; venation, close to 152C. Fully developed leaves, lower surface: Close to between 147D and 148C; venation, close to 195C. [0077] Petioles.Length: About 1.9 cm. Diameter: About 2 mm. Texture and luster, upper surface: Moderately pubescent; matte. Texture and luster, lower surface: Sparsely pubescent; matte. Color, upper surface: Close to 183A to 183B. Color, lower surface: Close to 176B and becoming closer to 177B with development; proximally, close to 146B. [0078] Flower description: [0079] Flower type and habit.Showy sterile flowers and smaller inconspicuous fertile flowers arranged on terminal panicles; panicles broadly conical in shape; sterile flowers face upright to outwardly and slightly drooping depending on their position in the inflorescence; fertile flowers face mostly upright. [0080] Fragrance.Faint to moderate, sweet and pleasant. [0081] Natural flowering season.Flowering begins in the midsummer and is continuous until late summer in Northern Europe. [0082] Flower longevity.Sterile flowers last about six weeks on the plant, sterile flowers persistent; fertile flowers last about five days on the plant, fertile flowers not persistent. [0083] Quantity of flowers.Freely flowering habit; about 250 sterile flowers and about 165 fertile flowers per panicle. [0084] Panicle height.About 16.8 cm. [0085] Panicle diameter.About 14.7 cm. [0086] Sterile flower buds.Length: About 9 mm. Diameter: About 1.2 cm. Shape: Cup-shaped. Color: Close to between 145B and 145C. [0087] Fertile flower buds.Length: About 4 mm. Diameter: About 3 mm. Shape: Obovate. Color: Close to 145C; towards the apex, slightly tinged with close to 70D; immature calyx, close to 145B. [0088] Sterile flower diameter.About 3.6 cm. Sterile flower depth (height).About 9 mm. [0089] Fertile flower diameter.About 1 cm. [0090] Fertile flower depth (height).About 7 mm. [0091] Petals, sterile flowers.Quantity and arrangement: Four or occasionally five arranged in a single whorl. Length: About 3 mm. Width: About 1.5 mm. Shape: Ovate, concave. Apex: Acute. Base: Cuneate. Margin: Entire. Texture and luster, upper surface: Smooth, glabrous; slightly glossy. Texture and luster, lower surface: Smooth, glabrous; matte. Color: When opening and fully opened, upper surface: Close to NN155D; color does not change with development. When opening and fully opened, lower surface: Close to NN155B; distally, tinged with close to 59D; color does not change with development. [0092] Petals, fertile flowers.Quantity and arrangement: Five arranged in a single whorl. Length: About 3.5 mm. Width: About 1.75 mm. Shape: Ovate, concave. Apex: Acute. Base: Cuneate. Margin: Entire. Texture and luster, upper surface: Smooth, glabrous; slightly glossy. Texture and luster, lower surface: Smooth, glabrous; matte. Color: When opening, upper and lower surfaces: Close to NN155D. Fully opened, upper surface: Close to NN155D; color does not change with development. Fully opened, lower surface: Close to NN155D; distally, tinged with close to 59D; color does not change with development. [0093] Sepals, sterile flowers.Quantity and arrangement: Typically four or occasionally five arranged in a single whorl. Length: About 1.9 cm. Width: About 1.3 cm. Shape: Obovate, slightly concave. Apex: Obtuse. Base: Attenuate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening, upper and lower surfaces: Close to between 150D and 155A. Fully opened, upper surface: Close to 155A; with subsequent development, color becoming closer to between 61D and 62B. Fully opened, lower surface: Close to NN155A; with subsequent development, color becoming closer to 65D and towards the margins and apex, close to 62C. [0094] Sepals, fertile flowers.Quantity and arrangement: Five in a single whorl. Length: About 1 mm. Width: About 1.25 mm. Shape: Broadly deltoid. Apex: Broadly acuminate. Base: Broadly cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening, upper surface: Close to 192B. When opening, lower surface: Close to 192C. Fully opened, upper and lower surfaces: Close to 150D; color does not change with development. [0095] Pedicels, sterile flowers.Length: About 2.2 cm. Diameter: About 1 mm. Strength: Moderately strong. Aspect: About 50 from branch axis. Texture and luster: Moderately pubescent; matte. Color: Close to 157D. [0096] Pedicels, fertile flowers.Length: About 2.5 mm. Diameter: About 0.5 mm. Strength: Moderately strong. Aspect: About 15 from vertical. Texture and luster: Densely pubescent; matte. Color: Close to 155A. [0097] Reproductive organs, sterile flowers.Stamens: Quantity per flower: About eight. Filament length: About 2 mm. Filament color: Close to NN155D. Anther length: About 0.5 mm. Anther shape: Broadly oblong. Anther color: Close to 155D. Pollen amount: Moderate. Pollen color: Close to 157A. Pistils: Pistil quantity per flower: Typically one. Pistil length: About 1 mm. Stigma shape: Pointed. Stigma color: Close to 157D. Style length: About 0.5 mm. Style color: Close to 155A. Ovary color: Close to 155A. [0098] Reproductive organs, fertile flowers.Stamens: Quantity per flower: About ten. Filament length: About 5.5 mm. Anther length: About 0.5 mm. Anther shape: Broadly oblong. Anther color: Close to 197C. Pollen amount: Moderate. Pollen color: Close to 157A. Pistils: Pistil quantity per flower: Typically three. Pistil length: About 2 mm. Stigma shape: Club-shaped. Stigma color: Close to 155A. Style length: About 1 mm. Style color: Close to 150D. Ovary color: Close to 150D. [0099] Seeds.To date, seed production has not been observed on plants of the new Hydrangea. [0100] Pathogen & pest resistance: To date, under commercial production conditions, plants of the new Hydrangea have not been observed to be resistant to pathogens and pests common to Hydrangea plants. [0101] Garden performance: Plants of the new Hydrangea have been observed have good garden performance and to be suitable for USDA Hardiness Zones 5 through 9.