<i>Hydrangea </i>‘CAMCHO45’

Abstract

A new and distinct cultivar of Hydrangea plant named ‘CAMCHO45’ is disclosed, characterized by lace-cap inflorescences with large, distinctly concave pure white sepals. Plants have rounded habits, dark green foliage, and very dark purple stems. The new variety is a Hydrangea, typically produced as an outdoor ornamental plant.

Claims

1. A new and distinct cultivar of Hydrangea plant named ‘CAMCHO45’ as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying photograph in FIG. 1 illustrates in full color a typical plant of ‘CAMCHO45’ grown outdoors Camarillo, Calif. This plant is approximately 2-3 years old, grown in a #5 container.

(2) FIG. 2 illustrates in full color a close up of the flowers of ‘CAMCHO45’. The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

(3) In the following description, color references are made to The Royal Horticultural Society Colour Chart 2007, except where general terms of ordinary dictionary significance are used. The following observations and measurements describe ‘CAMCHO45’ plants grown outdoors in Camarillo, Calif. The plants were about 2 years old. Temperatures ranged from 12° C. to 15° C. at night to 18° C. to 27° C. during the day. No artificial light, photoperiodic treatments were given to the plants. Measurements and numerical values represent averages of typical plant types. Botanical classification: Hydrangea macrophylla ‘CAMCHO45’.

PROPAGATION

(4) Typical method: Softwood cuttings. Root initiation: Approximately 20 days. Time to produce rooted cutting: 60 days during summer. Roots: Thick to thin, freely branching, fibrous, dense. White to brown in color, not accurately measured with RHS chart.

PLANT

(5) Plant shape: Round. Growth habit: Outward and upward. Height: 55 cm. Plant spread: 60 cm. Pot size of plant described: 3-gallon container. Age of plant described: Approximately 2 years. Growth rate: Moderate. Plant vigor: Good. Stems/branches: Branching.—Basal. Number of main stems/branches.—12 to 15. Shape.—Rounded. Color.—Immature: RHS Greyed-Purple N186B. Mature: RHS Greyed-Purple N186A. Old growth: RHS Greyed-Purple N186B striated Greyed-Brown N199B. Length.—35 to 42 cm. Width.—7 to 11 mm. Aspect.—Mainly straight, outermost branch slightly concave. Angle about 15° to 45°. Strength.—Moderately strong. Texture.—Glabrous, no lenticels. Small ridges detectable. Internode length.—4.5 to 7 cm.

FOLIAGE

(6) Leaf: Arrangement.—Opposite. Shape.—Ovate. Length.—11 cm. Width.—7 to 9 cm. Apex.—Acuminate. Base.—Obtuse to broad tapered. Margin.—Dentate. Texture of top surface.—Glabrous. Texture of bottom surface.—Glabrous. Color.—Young foliage upper side: Near RHS Green 137A. Young foliage under side: Near RHS Green 138A. Mature foliage upper side: Near RHS Green 139A. Mature foliage, under side: Near RHS Green 137D. Venation: Type.—Pinnate. Color.—Upper side: Near RHS Yellow-Green 144B. Under side: Near RHS Yellow-Green 145A, near petiole attachment strongly flushed Greyed-Purple 187A. Petiole: Length.—2 cm to 3 cm. Width.—4 mm. Color.—Upper side: RHS Yellow-Green 145A, flushed Greyed-Purple 187A. Under side: RHS Yellow-Green 145A, nearly completely covered in Greyed-Purple 187A flush. Upper side: Glabrous. Under side: Glabrous.

INFLORESCENCE

(7) Natural flowering season: Summer. Inflorescence type: Lace-cap. Corymb: Shape.—Flat, disc shaped. Height.—5 cm. Diameter.—Average range 12 to 18 cm. Fragrance: None. Sterile flowers: Flowers per inflorescence.—10 to 15. Aspect.—Upright facing flower composed of strongly concave sepals. Shape.—Round. Arrangement.—Overlapping whorl. Diameter.—4.0 cm. Petals remain concave, not flattening out. Depth.—3.0 cm(excluding pedicel). Persistent or self-cleaning.—Persistent. Bud: Bud length.—5 mm. Bud diameter.—5 mm. Bud shape.—Sphere. Bud color.—RHS Green-White 157A. Pedicel: Length.—3 cm. Diameter.—2 mm. Angle.—About 135° from center. Strength.—Good, flexible. Texture.—Glabrous. Color.—RHS Red-Purple 59A. Base Greyed-Purple 187A. Fertile flowers: Flowers per inflorescence.—About 120 to 150. Shape.—Stellate. Diameter.—5 mm. Depth.—3 mm. Persistent or self-cleaning.—Self-cleaning. Bud: Bud length.—3 mm. Bud diameter.—3 mm. Bud shape.—Sphere. Bud color.—RHS Green-White 157A. Sepal: Number per flower.—5. Arrangement.—Stellate. Shape.—Obovate. Tip.—Acute. Base.—Truncate. Margin.—Entire. Length.—3 mm. Width.—2 mm. Texture.—Upper side: Glabrous. Under side: Glabrous. Color.—When Opening, Upper side: RHS Green-White 157C. When Opening, Under side: RHS Green-White 157C. Fully Opened, Upper side: RHS White 155C. Fully Opened, Under side: RHS White 155C. Pedicel: Length.—3 to 7 mm. Diameter.—2 mm. Angle.—15° to 135°. Strength.—Good. Texture.—Glabrous. Color.—RHS Red-Purple 59A. Base Greyed-Purple 187A.

REPRODUCTIVE ORGANS

(8) Sterile flower: Central, globular structure with no definable parts. Fertile flower: Stamen: Number.—10 to 12. Filament length.—3 to 4 mm. Filament color.—RHS White 155D. Anther: Shape.—Rounded, basifixed. Length.—About 1 mm. Color.—RHS White 155A. Pollen amount.—None observed. Pistil: Number.—1. Length.—3 mm. Stigma: Shape.—3-parted. Color.—RHS White 155A. Style length.—2 mm. Style color.—RHS White 155D. Ovary color.—RHS White 155D.

OTHER CHARACTERISTICS

(9) Disease resistance: Neither resistance nor susceptibility to the normal diseases and pests of Hydrangea has been observed. Drought tolerance: None. Temperature tolerance: USDA Zones 6 to 9 reliably, Zone 5 with protection from the cold. Fruit/seed production: Not observed to date.