Dianthus plant named ‘Midtemari’

Abstract

A new and distinct cultivar of Dianthus plant named Midtemari, characterized by its compact and upright plant habit; moderately vigorous growth habit; moderately strong flower stems; early flowering habit; large flowers fully covered with numerous bright green-colored bracts; and good container and garden performance.

Claims

1. A new and distinct Dianthus plant named Midtemari as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying photographs illustrate the overall appearance of the new Dianthus 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 of the new Dianthus plant.

(2) The photograph on the first sheet is a side perspective view of a typical plant of Midtemari.

(3) The photograph on the second sheet is a close-up view of a typical flower of Midtemari.

DETAILED BOTANICAL DESCRIPTION

(4) Plants used in the aforementioned photographs and following observations and measurements describe plants grown during the spring and summer in 10.5-cm containers in a glass-covered greenhouse in Hokuto-City, Yamanashi, Japan and under cultural practices typical of commercial container Dianthus production. During the production of the plants, day temperatures averaged 25 C., night temperatures averaged 20 C. and light levels averaged 80,000 lux. Plants were 13 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. Botanical classification: Dianthus barbatus Breagreen. Parentage: Naturally-occurring whole plant mutation of Dianthus barbatus Temarisou, not patented. Propagation: Type.By in vitro meristem cuttings. Time to initiate roots, summer.About three weeks at ambient temperatures ranging from 20 C. to 30 C. and soil temperature about 20 C. Time to initiate roots, winter.About three weeks at ambient temperatures ranging from 12 C. to 20 C. and soil temperature about 20 C. Time to produce a rooted young plant, summer.About five weeks at ambient temperatures ranging from 20 C. to 30 C. and soil temperature about 20 C. Time to produce a rooted young plant, winter.About six weeks at ambient temperatures ranging from 12 C. to 20 C. and soil temperature about 20 C. Root description.Fine, fibrous; typically close to 155C in color. Rooting habit.Moderate branching; medium density. Plant description: Plant and growth habit.Herbaceous perennial; compact and upright plant form with moderately strong flowering stems; narrow inverted triangle; moderately vigorous growth habit. Branching habit.Basal-branching growth habit, about five to seven flowering stems develop per plant. Plant height.About 20 cm. Plant diameter or spread.About 25 cm. Flowering stems.Length: About 20 cm. Diameter: About 5 mm. Internode length: About 5 cm. Strength: Moderately strong. Texture and luster: Smooth, glabrous; matte. Color: Close to 143A; at the nodes, close to 143B. Leaf description.Arrangement: Opposite, simple; sessile. Length: About 1.9 cm to 9 cm. Width: About 1.4 cm to 6 cm. Shape: Lanceolate. Apex: Obtuse. Base: Long cuneate, decurrent. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Venation pattern: Parallel. Color: Developing leaves, upper and lower surfaces: Close to 143C. Fully expanded leaves, upper surface: Close to 137A; venation, close to 137A. Fully expanded leaves, lower surface: Close to 137C; venation, close to 137C. Flower description: Flower type and flowering habit.Single, almost spherical, terminal flowers without floral structures typical of Dianthus plants; flower head fully covered with sepals and modified bracts. Natural flowering season.Flowering is continuous through the summer into the autumn in Japan; early flowering habit, plants begin flowering about ten weeks after planting. Flower longevity.Good postproduction longevity with flowers lasting about 30 days on the plant; flowers persistent. Petals.None observed to date. Sepals.Quantity per flower: About 80. Length: About 1.6 cm. Width: About 1 cm. Shape: Lanceolate. Apex: Long acuminate. Base: Cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening, upper and lower surfaces: Close to 143C. Fully opened, upper and lower surfaces: Close to 143B; color does not change with subsequent development. Bracts.Quantity per flower: About 102. Length: About 1.7 cm. Width: About 3 mm. Shape: Lanceolate. Apex: Long acuminate. Base: Cuneate. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color: When opening, upper and lower surfaces: Close to 143C. Fully opened, upper and lower surfaces: Close to 143C; color does not change with subsequent development. Reproductive organs.None observed to date. Fruits and seeds.None observed to date. Disease & pest resistance: Plants of the new Dianthus have not been observed to be resistant to pathogens and pests common to Dianthus plants to date. Garden performance: Plants of the new Dianthus have been observed to have good garden performance, to tolerate rain and to tolerant to temperatures ranging from 5 C. to 30 C.