<i>Coreopsis </i>plant named ‘MVNC1902’

Abstract

A new cultivar of hybrid Coreopsis plant named ‘MVNC1902’ that is characterized by its compact plant habit with stems that are similar in length, its long flowering period from late spring to early autumn in The Netherlands, its inflorescences with ray florets that are bright red in color with yellow-orange margins, its abundance of inflorescences that are large in size, its resistance to powdery mildew, its high tolerance to heat and humidity, and its healthy foliage that maintains its bright green appearance.

Claims

1. A new and distinct cultivar of Coreopsis plant named ‘MVNC1902’ as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying color photographs illustrate the overall appearance and distinct characteristics of the new Coreopsis. The photographs were taken of a 1-year-old plant of ‘MVNC1902’ as grown outdoors in a 17 cm container in Warmond, The Netherlands.

(2) The photograph in FIG. 1 provides a view of the plant habit of ‘MVNC1902’ in bloom.

(3) The photograph in FIG. 2 provides a close-up view of inflorescences of ‘MVNC1902’.

(4) The colors in the photographs are as close as possible with the photographic and printing technology utilized and the color values cited in the detailed botanical description accurately describe the colors of the new Coreopsis.

DETAILED BOTANICAL DESCRIPTION

(5) The following is a detailed description of 1-year-old plants of ‘MVNC1902’ as grown outdoors in 17 cm containers in Warmond, The Netherlands. The phenotype of the new cultivar may vary with variations in environmental, climatic, and cultural conditions, as it has not been tested under all possible environmental conditions. The color determination is in accordance with The 2015 Colour Chart of The Royal Horticultural Society, London, England, except where general color terms of ordinary dictionary significance are used. General description: Blooming period.—Blooms from early late spring to early autumn in the Netherlands. Plant type.—Herbaceous perennial. Plant habit.—Clump-forming, compact, bushy, upright leafy flowering stems that are similar in length with inflorescences held above the foliage. Height and spread.—Reaches an average of 45.5 cm in height and 45.3 cm in width. Cold hardiness.—At least to U.S.D.A Zone 4. Diseases and pests.—Resistance to powdery mildew (Podosphaera macularis), no susceptibility or resistance to pests has been observed. Root description.—Fibrous and fine, NN155A in color. Propagation.—Stem cuttings. Root development.—An average of 10 days for root initiation, an average of 20 weeks to produce a marketable plant. Growth rate.—Moderate to highly vigorous. Branch description: Branch shape.—Rounded, slightly axially ribbed. Branch color.—144A. Branch size.—Main and secondary stems; an average of 16 cm in length and 3 mm in width. Branch strength.—Very strong. Branch surface.—Glabrous. Branch aspect.—Average of 22.5° to vertical. Branching quantity.—An average of 23 main branches, 5 secondary branches per main stem. Internode length.—An average of 6.8 cm. Foliage description: Leaf division.—Simple. Leaf margins.—Entire. Leaf size.—9.2 cm in length, 1.6 cm in width. Leaf shape.—Lanceolate. Leaf base.—Long attenuate to decurrent. Leaf apex.—Bluntly acute to obtuse. Leaf venation.—Pinnate, color upper surface; 144B, lower surface; 146C. Leaf attachment.—Upper stem leaves sessile, lower stem leaves petiolate. Leaf arrangement.—Opposite. Leaf surface.—Both surfaces smooth, glabrous, margins are sparsely pubescent with short thin hairs; 0.1 mm in length, too small to measure color. Leaf color.—Young upper surface 143B, young lower surface 143B and 144A, mature upper surface 137A, mature lower surface 147B. Petioles.—Lower stem leaves; average of 3.7 cm in length, 2 mm in diameter, v-shaped, smooth, glabrous, color; upper surface 143A, lower surface 144A to 144B, margins sparsely pubescent with short thin hairs an average of 1 mm in length and too small to measure color. Flower description: Inflorescence type.—Terminal capitulum consisting of ray florets and disc florets. Lastingness of inflorescence.—Average of 10 days. Fragrance.—Faint, pleasant. Quantity of inflorescences.—1 per lateral stem, 115 per plant. Inflorescence size.—2.2 cm in height, 6.1 cm in diameter, disc diameter 1.1 cm. Inflorescence buds.—Globular in shape, an average of 9 mm in depth and 9 mm in diameter, dull surface; color; 152A, striped 148A. Peduncle.—Rounded in shape, moderately strong, held in a vertical angle, an average of 16 cm in length and 2 mm in diameter, 143C in color, smooth, slightly glossy and glabrous surface. Phyllaries (involucral bracts): Phyllary number.—2 rows; total of 16, upper row 8, lower row 8. Phyllary size.—Upper phyllaries; an average of 1.1 cm in length and 4 mm in width, lower phyllaries; an average of 7 mm in length and 2.5 mm in width. Phyllary color.—Upper phyllaries upper surface; 152B, upper phyllaries lower surface; 144A, upper ⅔.sup.rd 152B, margins 154B, lower phyllaries upper surface; 137C, lower phyllaries lower surface; 137B to 137C. Phyllary texture.—Upper phyllaries; smooth, glabrous, lower phyllaries; smooth, glabrous, slightly glossy. Phyllary apex.—Acute. Phyllary base.—Cuneate. Phyllary shape.—Upper phyllaries; ovate, lower phyllaries; narrow ovate. Ray florets: Number.—8. Shape.—Obovate, rotate. Size.—An average of 2.9 cm in length and 1.8 cm in width. Apex.—Cleft into 4 lobes. Base.—Rounded. Margins.—Entire. Aspect.—Rotate. Texture.—Upper surface; matte, glabrous, velvety, slightly carinate, lower surface; very slightly glossy, glabrous, non-velvety. Color.—When opening upper surface; 46A and 187C, lobes 14A, when opening lower surface; 184A to 184B, lobes 14B, when fully open upper surface; 46A and 185A, lobes 17A, fully open lower surface; 176D, lobes 14B. Disc florets (male and female): Number.—An average of 110. Shape.—Tubular. Base.—Lower 85% fused. Size.—About 9 mm in length and 2.5 mm in width. Apex.—Acute. Surface.—Glabrous, moderately glossy. Margins.—Entire. Color.—When opening upper and lower surface; 17A to 17B, mid-section, base 13B, fully open upper and lower surface; 14B, tips 14A, lower half 12D. Receptacle.—Average of 2 mm in height, 4 mm in diameter, 145B in color. Receptacle spines.—Linear, 110 per disc floret, soft, narrow acute apex, narrow cuneate base, surface is glabrous, moderately glossy, color; apex 22B, mid-section 1C, base 157D. Reproductive organs: Gynoecium.—1 Pistil; an average of 7 mm in length, style; 6.5 mm in length, 145C to 145D in color, stigma; unequal decurrent, 17A in color, ovary; N77B. Androecium.—5 stamens, filament; 4 mm in length, 145C to 145D in color, anther; linear, 3 mm in length, N199C, pollen; moderate in quantity and 17B in color. Seed.—Seed development has not been observed.