<i>Hebe </i>plant named ‘HM1803011’

Abstract

A new cultivar of Hebe plant named ‘HM1803011’ that is characterized by its consistently healthy plants that have a low susceptibility to leaf spot disease and downy mildew, its compact plant habit, its leaves that are small in size, its flowers that are self-cleaning, and its flowers that are purple-pink in color.

Claims

1. A new and distinct cultivar of Hebe plant named ‘HM1803011’ 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 Hebe. The photographs were taken of a 7-month-old plant of ‘FSK17S28’ as grown outdoors in a 12-cm container in Wezep, The Netherlands.

(2) The photograph in FIG. 1 is a side view of ‘HM1803011’ in bloom.

(3) The photograph in FIG. 2 provides a close-up view of the inflorescences and foliage of ‘HM1803011’.

(4) The 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 Hebe.

DETAILED BOTANICAL DESCRIPTION OF THE PLANT

(5) The following is a detailed description of 7-month-old plants of the new cultivar as grown outdoors in 12-cm containers in Wezep, 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.—An average of 5 weeks from summer into autumn in The Netherlands. Plant type.—Evergreen shrub. Plant habit.—Compact. Height and spread.—Average of 20.3 cm in height (soil level to top of foliar plane), 20.8 cm (soil level to top of floral plane) and 20.5 cm in spread, an average of 70 cm in height and spread in the landscape. Cold hardiness.—At least to U.S.D.A. Zone 8. Diseases and pests.—Low susceptibility to leaf spot disease (Septoria veronicae) and downy mildew (Perenospora ssp.), no susceptibility or resistance to pests has been observed. Root description.—Fibrous to slightly fleshy. Propagation.—Softwood stem cuttings and tissue culture. Root development.—3 to 4 weeks to initiation roots and 10 weeks to root and bloom as a young plant. Growth rate.—Moderate. Branch description: Branch size.—Main branches; an average of 7 cm in length and 2 mm in diameter, lateral branches; an average of 11 cm in length and 2 mm in diameter. Branch shape.—Round. Branch color.—Young; 183B, lower side 177B, mature; 148A. Branch surface.—Slightly glossy, moderately to densely covered with very short glandular hairs; 0.1 mm in length, matches surface color. Branch strength.—Strong. Internode length.—Average of 1.2 cm. Branching habit.—Held in an average angle of 35° to vertical, average of 6 primary branches and secondary branches. Foliage description: Leaf shape.—Narrow obovate to oblanceolate, slightly carinate. Leaf division.—Single. Leaf base.—Cuneate. Leaf apex.—Bluntly acute. Leaf venation.—Pinnate; often with 3 to 5 main veins visible, color; upper surface; 147B to 147C, lower surface; 146C to 146D. Leaf margins.—Entire. Leaf attachment.—Sessile. Leaf arrangement.—Opposite. Leaf surface.—Both surfaces smooth, glabrous and non-rugose, upper surface very slightly glossy, lower surface matte. Leaf color.—Young upper surface; 137B, young lower surface; 146B, mature upper surface; NN137A, base 144C, mature lower surface; 146C. Leaf number.—Average of 12 per lateral branch 11 cm in length. Leaf size.—An average of 3.5 cm in length and 1.15 cm in width. Flower description: Inflorescence type.—Raceme. Inflorescence size.—Average of 4.1 cm in height and 2.3 cm in width. Inflorescence lastingness.—About 7 days, self-cleaning. Flower shape.—Campanulate. Flower fragrance.—None. Flower quantity.—Average 55 florets per inflorescence, 500 flowers per plant, 3,500 flowers and flower buds per plant. Flower arrangement.—Axillary racemes. Flower aspect.—Outward. Flower size.—Average of 6.5 mm in height, 8 mm in diameter, 1 cm in depth, throat diameter 2 mm, flower tube length 2 mm, flower tube diameter 2.25 mm. Peduncles.—Strong strength, 3.8 cm in length and about 1.5 mm in diameter, 146C in color, held at about a 45° angle to lateral branch, surface is matte and densely covered with very short glandular hairs an average of 0.1 mm in length, matches surface color. Pedicels.—Moderately strong strength, average of 1.5 mm in length and 0.5 mm in diameter, held at about a 45° angle to peduncle, 146C in color, surface is very matte and densely covered with very short glandular hairs; an average of 0.1 mm in length, color matches surface color. Flower buds.—Lanceolate to narrow elliptic, 4 mm in length and 1.5 mm in diameter, color; 63C, immature calyx 138B, surface is matte, smooth and glabrous. Calyx.—Rotate-shaped, average of 2 mm in length and diameter. Sepals.—4, 1 whorl, 1 mm in length, 2 mm in width, ovate in shape, entire margins, arrangement; rotate, acute tip, base cuneate and fused, surfaces glabrous, matte, slightly glossy, color; when opening and fully open upper and lower surface 143C, margins 157A. Petals.—Average 4, 1 whorl, oblong in shape, lower petals moderately reflexed, lower 33% of petals fused, 4 mm in length and 2 mm in width, entire and very slightly concave margins, apex obtuse, upper and lower surface is smooth and glabrous, non-rugose, both surfaces very slightly glossy, color: upper surface when opening; 61C, lower surface when opening; 73B, upper surface when fully open; 64C, lower surface when fully open; 73A and 73B, throat N78C, tube N78C, base N155C. Floral bracts.—A single bract is placed below each individual flower, very short oblong in shape, moderately concave, tip bluntly acute, cuneate base, 2 mm in length, 1 mm in width, both surfaces glabrous and 146C in color. Reproductive organs: Gynoecium.—Pistil; 1, 9 mm in length, stigma; club-shaped, 5 mm in length, 182B in color, style; 8.5 mm in length and 72B in color, ovary; 138B in color. Androecium.—Stamens; 2, anthers; oblong in shape, 0.75 mm in length, 0.5 mm in width and 177B in color, filaments; 1.25 mm in length, color; 73D, pollen; none observed. Fruit and seed.—None observed to date.