<i>Mandevilla </i>plant named ‘QD8’

Abstract

A new and distinct cultivar of Mandevilla plant named QD8, characterized by its compact, broadly upright to vining plant habit; moderately vigorous to vigorous growth habit; freely branching habit; dense and bushy appearance; dark green-colored leaves; freely flowering habit; and relatively large strong red-colored flowers with greyed orange-colored throats.

Claims

1. A new and distinct Mandevilla plant named QD8 as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying colored photographs illustrate the overall appearance of the new Mandevilla 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 slightly from the color values cited in the detailed botanical description which accurately describe the actual colors of the new Mandevilla plant.

(2) The photograph on the first sheet (FIG. 1 of 2) comprises a side perspective view of a typical flowering plant of QD8 grown in a container.

(3) The photographs on the second sheet (FIG. 2 of 2) are close-up views of typical developing flowers and developing leaves of QD8.

DETAILED BOTANICAL DESCRIPTION

(4) The aforementioned photographs and following observations, measurements and values describe plants grown during the autumn in 13-cm containers in a glass-covered greenhouse in Sabro, Denmark and under cultural practices typical of commercial Mandevilla production. During the production of the plants, day temperatures ranged from 20 C. to 25 C., night temperatures ranged from 19 C. to 21 C. and light levels ranged from 40 klux to 50 klux. Plants were pinched two times and were 31 weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Mandevilla sanderi QD8. Parentage: Female, or seed, parent.Proprietary selection of Mandevilla sanderi identified as code number GB 2013-0902, not patented. Male, or pollen, parent.Proprietary selection of Mandevilla sanderi identified as code number GB 2013-0196, not patented. Propagation: Type.By vegetative cuttings. Time to initiate roots, summer.About three weeks at soil and ambient temperatures about 21 C. Time to initiate roots, winter.About four weeks at soil and ambient temperatures about 21 C. Time to produce a rooted young plant, summer.About seven weeks at soil and ambient temperatures about 21 C. Time to produce a rooted young plant, winter.About eight weeks at soil and ambient temperatures about 21 C. Root description.Fine, fleshy; typically close to 161C in color, actual color of the roots is dependent on substrate composition, water quality, fertilizers, substrate temperature and physiological age of roots. Rooting habit.Freely branching; dense. Plant description: Plant and growth habit.Compact, broadly upright to vining plant habit; overall plant shape is broadly obovate; moderately vigorous to vigorous growth habit and moderate growth rate; freely branching habit; dense and bushy appearance. Plant height, soil level to top of foliar plane.About 25 cm to 35 cm. Plant height, soil level to top of floral plane.About 28 cm to 38 cm. Plant diameter (spread).About 25 cm to 35 cm. Lateral branch description.Branching habit: Freely branching habit, about four to six primary lateral branches each with typically four to eight secondary lateral branches developing per plant. Length: About 10 cm to 25 cm. Diameter: About 5 mm. Internode length: About 2 cm to 4 cm. Aspect: Mostly upright to vining. Strength: Strong. Texture and luster: Smooth, glabrous; semi-glossy to matte. Color, developing: Close to 144A. Color, developed: Close to 144A; becoming closer to 148A with subsequent development. Leaf description: Arrangement.Opposite, simple. Length.About 4 cm to 8 cm. Width.About 2 cm to 6 cm. Shape.Elliptic to oblong. Apex.Cuspidate to mucronate. Base.Obtuse to rounded cordate. Margin.Entire, not undulate. Texture and luster, upper surface.Smooth, glabrous; not rugose; slightly coriaceous; semi-glossy. Texture and luster, lower surface.Smooth, glabrous; not rugose; slightly coriaceous; matte. Venation pattern.Pinnate. Color.Developing leaves, upper surface: Close to 141A. Developing leaves, lower surface: Close to 137D. Full expanded leaves, upper surface: Close to 139A; venation, close to 137C. Fully expanded leaves, lower surface: Close to 137C; venation, close to 135A. Petioles.Length: About 3 mm to 5 mm. Diameter: About 2 mm to 3 mm. Strength: Moderately strong to strong. Texture and luster, upper and lower surfaces: Smooth, glabrous; semi-glossy to matte. Color, upper surface: Close to 143C. Color, lower surface: Close to 139D. Flower description: Flower type and flowering habit.Single salverform flowers arranged singly or in terminal or axillary cymes; flowers rounded star-shaped and face upright to outwardly; freely flowering habit with about three to six flower buds and about one to two open flowers per inflorescence. Natural flowering season.Plants flower continuously from spring into the autumn in Denmark; plants begin flowering about nine to twelve weeks after final pinch. Flower longevity on the plant.About 8 to 14 days; flowers persistent. Fragrance.None detected. Inflorescence height (before flowers open).About 5 cm to 8 cm. Inflorescence diameter (before flowers open).About 5 cm to 7 cm. Flower buds.Length: About 2 cm to 7 cm. Diameter: About 1 cm to 2 cm. Shape: Rhomboidal. Texture and luster: Smooth, glabrous; slightly glossy. Color: Close to 53C. Flowers.Appearance: Flared trumpet, petals fused and five-parted; petals slightly imbricate. Diameter: About 10 cm to 12 cm. Depth (length): About 4 cm to 5 cm. Throat diameter: About 2 cm to 3 cm. Tube length: About 2 cm to 3 cm. Tube diameter: About 5 mm to 7 mm. Petals.Quantity and arrangement: Five petals arranged in a single whorl; proximally, petals are fused into a funnelform tube. Petal length: About 3 cm to 4 cm. Petal width: About 4 cm to 5 cm. Petal shape and appearance: Unequal spatulate. Petal apex: Acuminate to mucronate. Petal margin: Entire; slightly undulate. Petal texture and luster, upper surface: Smooth, glabrous; not rugose; moderately velvety; matte. Petal texture and luster, lower surface: Smooth, glabrous; not rugose; moderately velvety; moderately glossy. Throat texture: Smooth, glabrous; moderately velvety. Tube texture: Smooth, glabrous; slightly velvety. Color: Petal, when opening, upper surface: Close to 53C. Petal, when opening, lower surface: Close to 54A. Petal, fully opened, upper surface: Close to 53B; venation, close to 53B; color becoming closer to 46B with development. Petal, fully opened, lower surface: Close to 53C; venation, close to 53C; color becoming closer to 53B with development. Throat: Close to N172D; proximally, close to N144D; venation, close to 46A and N144D. Tube: Close to N144D; venation, close to N144D. Sepals.Quantity and arrangement: Five sepals arranged in a single whorl. Sepal length: About 5 mm to 10 mm. Sepal width: About 2 mm to 5 mm. Sepal shape: Lanceolate. Sepal apex: Acuminate. Sepal base: Rounded. Sepal margin: Entire. Sepal texture and luster, upper and lower surfaces: Smooth, glabrous; semi-glossy. Sepal color: When opening, upper and lower surfaces: Close to 145B; towards the apex, close to 46B; towards the base, close to 146B. Fully opened, upper and lower surfaces: Close to 145B; towards the apex, close to 46B; towards the base, close to 146B. Peduncles.Length: About 2 cm to 6 cm. Diameter: About 3 mm to 5 mm. Strength: Strong. Aspect: Mostly upright. Texture and luster: Smooth, glabrous; semi-glossy. Color: Close to 146A. Pedicels.Length: About 5 mm to 10 mm. Diameter: About 3 mm to 5 mm. Strength: Strong. Aspect: Mostly upright. Texture and luster: Smooth, glabrous; semi-glossy. Color: Close to 146C. Reproductive organs.Stamens: Quantity and arrangement: Typically five; basifixed; anthers connivent. Filament length: About 1 mm to 2 mm. Filament color: Close to 145D. Anther size: About 2 mm by 5 mm. Anther shape: Narrowly oblong. Anther color: Close to 162C. Pollen amount: Moderate. Pollen color: Close to 162C. Pistils: Quantity: Typically one or two. Pistil length: About 2 cm. Style length: About 5 mm to 20 mm. Style color: Close to 193B. Stigma diameter: About 3 mm to 4 mm. Stigma shape: Rounded to deltoid. Stigma color: Close to 138B. Ovary color: Close to 193A. Fruits.Quantity per flower: One. Length: About 1 cm to 2 cm. Diameter: About 2 mm to 5 mm. Texture: Smooth, glabrous. Color: Close to 138A. Seeds.Quantity per fruit: More than 100. Length: About 5 mm to 10 mm. Diameter: About 0.5 mm. Texture: Smooth, glabrous. Color: Close to 200D. Pathogen & pest resistance: To date, plants of the new Mandevilla have not been noted to be resistant to pathogens and pests common to Mandevilla plants. Temperature tolerance: Plants of the new Mandevilla have been observed to tolerate temperatures of about 10 C. to 44 C. and to be suitable for USDA Hardiness Zones 10b through 13.