Phlox plant named 'APPOTTWH'

Abstract

A new and distinct cultivar of Phlox plant named ‘Appottwh’, characterized by its broadly upright and relatively compact plant habit; freely flowering habit, numerous small purplish white-colored flowers; long flowering period; and good garden performance.

Claims

1. A new and distinct Phlox plant named ‘Appottwh’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

[0025] The accompanying photographs illustrate the overall appearance of the new Phlox 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 colors ofthe new Phlox plant. The photograph on the first sheet is a side perspective view of a typical flowering plant of ‘Appottwh’ grown in a container. The photographs on the second sheet are close-up views of typical inflorescences (upper photograph) and typical leaves (lower photograph) of ‘Appottwh’.

DETAILED BOTANICAL DESCRIPTION

[0026] The aforementioned photographs and following observations and measurements describe plants grown during the summer in 15-cm containers in an outdoor nursery in Mijdrecht, The Netherlands and under cultural practices typically used in commercial Phlox production. During the production of the plants, day temperatures ranged from 10° C. to 25° C. and night temperatures ranged from 4° C. to 15° C. Plants were pinched five weeks after planting and were 19 weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used. [0027] Botanical classification: Phlox puniculata ‘Appottwh’. [0028] Parentage: [0029] Female, or seed, parent.—Proprietary selection of Phlox paniculata identified as code number 047-11-K121-05, not patented. [0030] Male, or pollen, parent.—Proprietary selection of Phlox paniculata identified as code number 047-08-007, not patented. [0031] Propagation: [0032] Type.—By terminal cuttings. [0033] Time to initiate roots, summer.—About 12 days at temperatures about 20° C. [0034] Time to initiate roots, winter.—About 16 days at temperatures about 20° C. [0035] Time to produce a rooted young plant, summer.—About 36 days at temperatures about 18° C. [0036] Time to produce a rooted young plant, winter.—About 42 days at temperatures about 18° C. [0037] Root description.—Medium in thickness, fleshy; typically white 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. [0038] Rooting habit.—Freely branching; dense. [0039] Plant description: [0040] Plant and growth habit.—Herbaceous perennial; broadly upright and relatively compact plant habit; overall shape, broadly obovate; low vigor to moderately vigorous in growth habit. [0041] Plant height.—About 28.4 cm. [0042] Plant width (spread).—About 31.8 cm. [0043] Lateral branches.—Quantity: About five primary lateral branches per plant. Length: About 10.1 cm. Diameter: About 3.5 mm. Internode length: About 1.7 cm. Strength: Strong. Aspect: Upright to about 45° from vertical. Texture and luster: Smooth, glabrous; slightly glossy. Color: Close to 144A. [0044] Leaf description: [0045] Arrangement.—Opposite, simple. [0046] Length.—About 8.1 cm. [0047] Width.—About 2.9 cm. [0048] Shape.—Narrowly ovate to elliptic; slightly to moderately carinate. [0049] Apex.—Long apiculate to narrowly acute. [0050] Base.—Truncate. [0051] Margin.—Entire; very finely serrate, inconspicious. [0052] Texture and luster, upper and lower surfaces.—Glabrous; slightly rugose; slightly glossy. [0053] Venation pattern.—Pinnate. [0054] Color.—Developing leaves, upper surface: Close to 137A. Developing leaves, lower surface: Close to between 137D and 138B. Fully expanded leaves, upper surface: Close to N137C; venation, close to 144A. Fully expanded leaves, lower surface: Close to 147B; venation, close to 144B. [0055] Petioles.—Length: About 3 mm. Diameter: About 2 mm by 2.5 mm. Texture, upper and lower surfaces: Smooth, glabrous. Color, upper and lower surfaces: Close to 144B. [0056] Flower description: [0057] Flower type and flowering habit.—Single rotate and salverform flowers arranged in compound terminal panicles; flowers face upright to outwardly; panicles roughly hemispherical in shape; freely flowering habit with about 240 flowers developing per inflorescence and about 1,200 flowers developing per plant during the flowering season. [0058] Fragrance.—Moderately fragrant; sweet, pleasant. [0059] Natural flowering season.—Plants begin flowering about nine months after planting; long flowering period, plants flower continuously from July through September in The Netherlands. [0060] Flower longevity.—Flowers last about ten days on the plant; flowers not persistent. [0061] Flower buds.—Height: About 1.5 cm. Diameter: About 3.5 mm, Shape: Narrowly elliptic. Color: Close to N81A to N81B, towards the base, flushed with close to NN155D; developing calyx, close to 145C, main vein, close to 200C to 200D. [0062] Inflorescence height.—About 14.8 cm. [0063] Inflorescence diameter.—About 14.1 cm. [0064] Flower diamcter.—About 2.5 cm. [0065] Flower depth.—About 1.8 cm. [0066] Petals.—Quantity per flower: Typically five in a single whorl; petals fused at the base into a narrow tube; free parts slightly imbricate. Lobe width: About 1.2 cm. Shape: Free part, spatulate. Apex: Obtuse to rounded. Margin: Entire. Texture and luster, upper surface: Smooth, glabrous; moderately velvety; matte. Texture and luster, lower surface: Smooth, glabrous; slightly glossy. Color: When opening, upper surface: Close to NN155D; towards the apex, flushed with close to 76B; towards the throat, close to N74B; throat, close to N79D, proximally, close to 155B. When opening, lower surface: Close to NN155D flushed with close to 77B; tube, close to 155B. Fully opened, upper surface: Close to NN155D; towards the apex, slightly flushed with close to 76C; throat, close to N79D, proximally, close to 155B; color does not change with development. Fully opened, lower surface: Close to NN155D flushed with close to 77B; tube, close to N79D, proximally, close to 155B. [0067] Sepals.—Quantity per flower: Typically five in a single whorl, fused towards the base; calyx, campanulate. Length: About 7 mm. Width: About 1 mm. Shape: Lanceolate. Apex: Narrowly apiculate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; slightly glossy. Color: When opening, upper surface: Close to 145C. When opening, lower surface: Close to 145C; main vein, strongly tinged with close to 200C to 200D. Fully opened, upper surface: Close to 145C. Fully opened, lower surface: Close to 145C; main vein, strongly tinged with close to 200D. [0068] Peduncles.—Length, primary peduncles: About 12.2 cm. Diameter, primary peduncles: About 2 mm. Length, secondary peduncles: About 5.1 cm. Diameter, secondary peduncles: About 1.5 mm. Aspect, primary peduncles: Erect. Aspect, secondary peduncles: About 45° from vertical. Strength: Strong. Texture: Smooth, glabrous. Color: Close to 144A to 144B. [0069] Pedicels.—Length: About 4 mm. Diameter: About 1 mm. Angle: About 40° from the peduncle axis. Strength: Strong. Texture: Smooth, glabrous. Color: Close to 144C. [0070] Reproductive organs.—Stamens: Quantity per flower: Typically five; filaments fused with petals. Filament length: About 0.75 mm. Filament color: Close to NN155C. Anther length: About 1 mm. Anther shape: Oblong; basifixed. Anther color: Close to 164C. Pollen amount: Scarce. Pollen color: Close to 11D. Pistils: Quantity per flower: One. Pistil length: About 1 cm. Stigma shape: Cleft, three-parted. Stigma color: Close to 150C. Style length: About 9 mm. Style color: Close to 150D. Ovary color: Close to 143B to 143C. [0071] Seeds and fruits.—Seed and fruit development have not been observed on plants of the new Phlox. [0072] Garden performance: Plants of the new Phlox have been observed to have good garden performance and tolerate rain, wind, high temperatures about 35° C. and to be winter hardy to USDA Hardiness Zone 6. [0073] Pathogen & pest resistance: Plants of the new Phlox have been not been observed to be resistant to pathogens and pests common to Phlox plants.