<i>Hebe </i>plant named ‘HL1802019’

Abstract

A new cultivar of Hebe plant named ‘HL1802019’ that 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 intense violet-purple in color, and its floriferous blooming habit.

Claims

1. A new and distinct cultivar of Hebe plant named ‘HL1802019’ 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 ‘HL1802019’ as grown outdoors in a 12-cm container in Wezep, The Netherlands.

(2) The photograph in FIG. 1 is a side view of ‘HL1802019’ in bloom.

(3) The photograph in FIG. 2 provides a close-up view of the inflorescences and foliage of ‘HL1802019’.

(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 17.4 cm in height (soil level to top of foliar plane), 18.2 cm (soil level to top of floral plane) and 21.5 cm in spread as a 7-month-old, reaches 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 initiate roots and 10 weeks to produce a young rooted plant. Growth rate.—Moderate. Branch description: Branch size.—Lateral branches are an average of 13.4 cm in length and 2.5 mm in width. Branch shape.—Round. Branch color.—Young; 145A, tinged 177B, internodes; 200B, mature; 200C. Branch surface.—Moderately glossy, densely covered with very short glandular hairs, 0.1 mm in length, matches surface color. Branch strength.—Strong. Internode length.—Average of 1.1 cm. Branching habit.—Held in an average angle of 40° to vertical, average of 7 primary branches, 3 secondary branches. Foliage description: Leaf shape.—Narrow obovate, slightly carinate. Leaf division.—Single. Leaf base.—Cuneate. Leaf apex.—Bluntly acute. Leaf venation.—Pinnate, upper surface; 146B, lower surface; 147A to 147B. Leaf margins.—Entire, slightly coarsely undulate. Leaf attachment.—Sessile. Leaf arrangement.—Opposite. Leaf surface.—Both surfaces smooth, glabrous, non-rugose, upper surface moderately glossy, lower surface matte to very slightly glossy. Leaf color.—Young upper surface; a blend of 137C and 143A, young lower surface; N77A and N186C, mature upper surface; NN137B, mature lower surface; 146B. Leaf number.—Average of 10 per lateral branch 13 cm in length. Leaf size.—An average of 2.6 cm in length and 1.4 cm in width. Flower description: Inflorescence type.—Raceme. Inflorescence size.—Average of 5.2 cm in height and 1.9 cm in width. Inflorescence lastingness.—About 7 days, self-cleaning. Flower shape.—Campanulate. Flower fragrance.—None. Flower quantity.—Average 70 florets per inflorescence, 250 flowers per plant, 6,000 flowers and flower buds per plant. Flower arrangement.—Axillary racemes. Flower aspect.—Outward. Flower size.—Average of 4 mm in height, 4 mm in diameter, 8 mm in depth, throat diameter 1.5 mm, flower tube length 2.5 mm, flower tube diameter 2 mm. Peduncles.—Strong strength, 4.9 cm in length and about 1.25 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, average of 1.75 mm in length and 0.5 mm in diameter, held at about a 45° angle to peduncle, 146C in color. Flower buds.—Narrow oblong to narrow elliptic, 4 mm in length and 1.75 mm in diameter, color; 86A, immature calyx 138B, surface is matte, smooth and glabrous. Calyx.—Rotate-shaped, average of 2 mm in length and diameter. Sepals.—4, 1 whorl, 2 mm in length, 0.8 mm in width, narrowly ovate in shape, entire margins, arrangement; rotate, narrowly acute tip, base cuneate and fused, surfaces dull and smooth, color: when opening and fully open upper surface; 143C, narrow margins 157A, when opening and fully open lower surface; 138B, narrow margins 145D. Petals.—Average 4, 1 whorl, obovate in shape, base fused into campanulate shape, about 3.5 mm in length and 1.5 mm in width, entire and slightly concave margins, apex obtuse, upper and lower surface is smooth and glabrous, non-rugose, upper surface matte to very slightly glossy, lower surface very slightly glossy, color: upper surface when opening and fully open; N88B, lower surface when opening and fully open; N88B, top N88C, veins N81C, throat 83D, tube N88B. Floral Bracts.—A single bract is placed below each individual flower, 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, 6 mm in length, stigma; club-shaped, 5 mm in length, N77C in color, style; 5.5 mm in length and N78A in color, ovary; 138B in color. Androecium.—Stamens: 2, anthers; oblong in shape, 1 mm in length, 0.5 mm in width and 186D in color, filaments; 4 mm in length, color; 90D, pollen; none observed. Fruit and seed.—None observed to date.