<i>Chrysanthemum </i>plant named ‘Zanmusweet’

Abstract

A new and distinct cultivar of Chrysanthemum plant named ‘Zanmusweet’, characterized by its upright, outwardly spreading and uniformly spherical plant habit; vigorous growth habit; freely branching habit, dense and full plant habit; dark green-colored leaves; uniform and freely flowering habit; long flowering period; decorative-type inflorescences with ray florets that are bright yellow in color; and good garden performance.

Claims

1. A new and distinct Chrysanthemum plant named ‘Zanmusweet’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPH

(1) The accompanying photograph illustrates the overall appearance of the new Chrysanthemum plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. The photograph comprises a top perspective view of a typical flowering plant of ‘Zanmusweet’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

(2) The aforementioned photograph and following observations and measurements describe plants grown in 17-cm containers in an outdoor nursery in Rijsenhout, The Netherlands under natural daylengths during the summer and autumn and under cultural practices generally used in commercial Chrysanthemum production. During the production of the plants, day temperatures ranged from 15° C. to 25° C. and night temperatures ranged from 8° C. to 15° C. Plants were 17 weeks from planting when the photograph was taken and the detailed description was taken on plants from 13 to 19 weeks after planting. 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. Botanical classification: Chrysanthemum X morifolium ‘Zanmusweet’. Parentage: Female, or seed, parent.—Proprietary selection of Chrysanthemum X morifolium identified as code number 13-032374, not patented. Male, or pollen, parent.—Proprietary selection of Chrysanthemum X morifolium identified as code number 12-026453, not patented. Propagation: Type cutting.—By vegetative tip cuttings. Time to initiate roots, summer.—About six to eight days at temperatures about 12° C. to 23° C. Time to produce a rooted young plant, summer.—About 12 to 13 days at temperatures about 12° C. to 23° C. Root description.—Fine, fibrous; typically close to 164D 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: Appearance.—Perennial decorative-type Chrysanthemum; stems upright and outwardly spreading giving a uniformly rounded appearance to the plant; plants spherical in overall shape; very freely branching habit, about nine to ten primary lateral branches develop, each primary lateral branch with about ten secondary branches; dense and full plant habit; vigorous growth habit and rapid growth rate. Plant height.—About 30 cm. Plant width.—About 50 cm. Lateral branches.—Length: About 20 cm. Diameter: About 2 mm. Internode length: About 1.2 cm. Strength: Moderately weak. Aspect: About 30° to 45° from vertical. Texture and luster: Pubescent; longitudinally ridged; matte. Color: Close to 138B; with development, becoming closer to 199B. Leaves.—Arrangement: Alternate, simple. Length: About 2 cm to 7 cm. Width: About 0.7 cm to 3.5 cm. Shape: Elliptic to broadly elliptic. Apex: Acute. Base: Attenuate. Margin: Palmately lobed, sinuses between lateral lobes divergent and medium in depth. Texture and luster, upper surface: Pubescent; slightly glossy. Texture and luster, lower surface: Pubescent; matte. Venation: Pinnate. Color: Developing leaves, upper surface: Close to NN137A. Developing leaves, lower surface: Close to 137A. Fully expanded leaves, upper surface: Close to NN137A; venation, close to 138C. Fully expanded leaves, lower surface: Close to 138A; venation, close to 139D. Petioles: Length: About 0.3 cm to 1.5 cm. Diameter: About 1 mm to 2 mm. Strength: Moderately strong. Texture and luster, upper and lower surfaces: Smooth, glabrous; semi-glossy. Color, upper surface: Close to 138C. Color, lower surface: Close to 139D. Inflorescence description: Appearance.—Decorative-type inflorescence form; inflorescences borne on terminals above foliar plane; ray florets arranged acropetally on a capitulum; inflorescences facing upright to outwardly. Fragrance.—Faintly fragrant, pungent. Flowering response.—Under natural season conditions, plants flower from week 40 to week 44 in The Netherlands. Postproduction longevity.—Inflorescences maintain good color and substance for about three weeks in an outdoor nursery; inflorescences persistent. Quantity of inflorescences.—About 700 inflorescences develop per plant. Inflorescence buds.—Height: About 2 mm. Diameter: About 5 mm. Shape: Rounded. Texture and luster: Smooth, glabrous; semi-glossy. Color: Close to 150D. Inflorescence diameter.—About 3.5 cm to 4.5 cm. Inflorescence depth (height).—About 1 cm. Disc diameter.—To date, disc floret development has not been observed on plants of the new Chrysanthemum. Receptacle diameter.—About 3 mm. Receptacle height.—About 4 mm. Receptacle shape.—Domed. Receptacle color.—Close to 144D. Ray florets.—Number of ray florets per inflorescence: About 300 ray florets arranged in about ten whorls. Length, developing: About 0.8 cm. Length, developed: About 1.5 cm. Width, developing: About 1 mm. Width, developed: About 5 mm. Shape, developing: Narrowly elliptic. Shape, developed: Elliptic. Apex, developing and developed: Emarginate. Base, developing and developed: Obtuse. Margin, developing and developed: Entire; not undulate. Aspect, developing and developed: Mostly flat. Texture and luster, developing and developed, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening and fully opened, upper surface: Close to 9A; color becoming closer to 16A with development. When opening and fully opened, lower surface: Close to 8A; color becoming closer to 12B with development. Phyllaries.—Number of phyllaries per inflorescence: About 18 phyllaries arranged in about three whorls. Length: About 7 mm to 10 mm. Width: About 1 mm to 4 mm. Shape: Narrowly elliptic. Apex: Acute. Base: Attenuate. Margin: Entire. Texture and luster, upper and lower surfaces: Pubescent; semi-glossy. Color, upper surface: Close to 137A. Color, lower surface: Close to 138A. Peduncles.—Length, terminal peduncle: About 2 cm. Length, third peduncle: About 10 cm. Diameter, terminal peduncle: About 1.5 mm. Diameter, third peduncle: About 1.2 mm. Strength: Moderately weak. Texture and luster: Pubescent; matte. Color: Close to 143D. Reproductive organs.—Androecium: Not observed. Gynoecium: Number of pistils per ray floret: One. Pistil length: About 2 mm. Style length: About 1.5 mm. Style color: Close to 149C. Stigma diameter: About 1 mm. Stigma shape: Forked. Stigma color: Close to 12A. Ovary color: Close to 149D. Seeds and fruits.—To date, seed and fruit production have not been observed on plants of the new Chrysanthemum. Garden performance: Plants of the new Chrysanthemum have demonstrated good garden performance and will tolerate temperatures ranging from about 4° C. to about 30° C.