USPP35343P2

USPP35343P2 - Lavandula plant named ‘IB61003’

Info

Publication number: USPP35343P2
Application number: US17/976,776
Authority: US
Inventors: Steven Eggleton; Howard Bentley
Original assignee: Plant Growers Australia Pty Ltd
Current assignee: Plant Growers Australia Pty Ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-08-22
Anticipated expiration: 2042-10-29

Abstract

A new and distinct cultivar of Lavandula plant named ‘IB61003’, characterized by its compact and upright plant habit; freely branching growth habit, dense and bushy appearance; freely flowering habit; light pink-colored flowers with small to medium-sized light pink-colored sterile flower bracts arranged on short terminal spikes; and good garden performance.

Description

Botanical designation: Lavandula stoechas spp. pedunculata.

Cultivar denomination: ‘IB61003’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Lavandula Plant Named ‘IB6101’

Inventors: Steven Eggleton & Howard Bentley

Filed: Concurrently with this application application Ser. No. 17/996,777

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct Lavandula plant, botanically known as Lavandula stoechas pedunculata, commonly referred to as French Lavender and hereinafter referred to by the name ‘IB61003’.

The new Lavandula plant is a product of a planned breeding program conducted by the Inventors in Wonga Park, Victoria, Australia. The objective of the breeding program was to develop new dense and freely-flowering Lavandula plants with good garden performance and attractive plant form and flower coloration.

The new Lavandula plant originated from a self-pollination in October, 2015 of Lavandula stoechas pedunculata ‘FW Spellbound’, disclosed in U.S. Plant Pat. No. 31,641. The new Lavandula plant was discovered and selected by the Inventors as a single flowering plant within the progeny of the stated self-pollination in a controlled greenhouse environment in Wonga Park, Victoria, Australia in October, 2016.

Asexual reproduction of the new Lavandula plant by softwood terminal cuttings in a controlled greenhouse environment in Wonga Park, Victoria, Australia since October, 2016 has shown that the unique features of this new Lavandula plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Lavandula have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of the new Lavandula plant. These characteristics in combination distinguish ‘IB61003’ as a new and distinct Lavandula plant:

- 1. Compact and upright plant habit.
- 2. Freely branching growth habit, dense and bushy appearance.
- 3. Freely flowering habit.
- 4. Light pink-colored flowers with small to medium-sized light pink-colored sterile flower bracts arranged on short terminal spikes.
- 5. Good garden performance.

Plants of the new Lavandula differ primarily from plants of the parent, ‘FW Spellbound’, in the following characteristics:

- 1. Plants of the new Lavandula and ‘FW Spellbound’ differ in flower color as flowers of plants of the new Lavandula are light pink in color whereas flowers of plants of ‘FW Spellbound’ are dark greyed purple in color.
- 2. Plants of the new Lavandula and ‘FW Spellbound’ differ in sterile flower bract color as flowers of plants of the new Lavandula have light pink-colored sterile flower bracts whereas flowers of plants of ‘FW Spellbound’ have purple violet-colored sterile flower bracts.

Plants of the new Lavandula differ primarily from plants of Lavandula stoechas pedunculata, ‘IB6101’, disclosed in a U.S. Plant Patent application filed concurrently, in the following characteristics:

- 1. Plants of the new Lavandula are shorter than plants of ‘IB6101’.
- 2. Plants of the new Lavandula and ‘IB6101’ differ in flower color as flowers of plants of the new Lavandula are light pink in color whereas flowers of plants of ‘IB6101’ are white in color.
- 3. Plants of the new Lavandula have smaller sterile flower bracts than plants of ‘IB6101’.
- 4. Plants of the new Lavandula and ‘IB6101’ differ in sterile flower bract color as flowers of plants of the new Lavandula have light pink-colored sterile flower bracts whereas flowers of plants of ‘IB6101’ have white-colored sterile flower bracts.

Plants of the new Lavandula can be compared to plants of Lavandula stoechas pedunculata ‘FW Whimsical’, disclosed in U.S. Plant Pat. No. 31,679. In side by side comparisons, plants of the new Lavandula and ‘FW Whimsical’ differ primarily in the following characteristics:

- 1. Plants of the new Lavandula are more upright than and not as outwardly spreading as plants of ‘FW Whimsical’.
- 2. Plants of the new Lavandula are denser than plants of ‘FW Whimsical’.
- 3. Plants of the new Lavandula have shorter sterile flower bracts than plants of ‘FW Whimsical’.
- 4. Plants of the new Lavandula and ‘FW Whimsical’ differ in sterile flower bract color as flowers of plants of the new Lavandula have light pink-colored sterile flower bracts whereas flowers of plants of ‘FW Whimsical’ have light red purple-colored sterile flower bracts.

Plants of the new Lavandula can also be compared to plants of the Lavandula stoechas ‘Sweetberry Ruffles’, disclosed in U.S. Plant Pat. No. 22,447. In side-by-side comparisons, plants of the new Lavandula differ primarily from plants of ‘Sweetberry Ruffles’ in the following characteristics:

- 1. Plants of the new Lavandula and ‘Sweetberry Ruffles’ differ in flower color as flowers of plants of the new Lavandula are light pink in color whereas flowers of plants of ‘Sweetberry Ruffles’ are red purple in color.
- 2. Plants of the new Lavandula have narrower and lighter pink-colored sterile flower bracts than plants of ‘Sweetberry Ruffles’.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph illustrates the overall appearance of the new Lavandula plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Lavandula plant. The photograph is a side perspective view of a typical flowering plant of ‘IB61003’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations, measurements and values describe plants grown during the summer in an outdoor nursery in Fort Worth, Tex. and under cultural practices typical of commercial Lavandula production. During the production of the plants, day temperatures ranged from 35° C. to 40° C. and night temperatures ranged from 24° C. to 35° C. Plants were six months old when the photograph and the description were taken. In the description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used.

Botanical classification: Lavandula stoechas pedunculata ‘IB61003’.
Parentage:
- - Female, or seed, parent.—Lavandula stoechas pedunculata ‘FW Spellbound’, disclosed in U.S. Plant Pat. No. 31,641.
  - Male, or pollen, parent.—Lavandula stoechas pedunculata ‘FW Spellbound’, disclosed in U.S. Plant Pat. No. 31,641.
Propagation:
- - Type.—Terminal softwood vegetative cuttings.
  - Time to initiate roots, summer.—About ten days at temperatures about 24° C.
  - Time to initiate roots, winter.—About twelve days at temperatures about 21° C.
  - Time to produce a rooted young plant, summer.—About 24 to 28 days at temperatures ranging from 23° C. to 26° C.
  - Time to produce a rooted young plant, winter.—About 35 to 40 days at temperatures ranging from 15° C. to 18° C.
  - Root description.—Fine, fibrous; typically white to light brown in color, actual color of the roots is dependent on substrate composition, water quality, fertilizer type and formulation.
  - Rooting habit.—Freely branching; medium density.
Plant description:
- - Plant and growth habit.—Herbaceous perennial; compact and upright plant habit; roughly columnar in overall shape; moderately vigorous growth habit; moderate growth rate; flowers arranged in verticillasters on terminal spikes; freely branching habit, dense and bushy appearance.
  - Plant height, soil level to top of foliar plane.—About 16.25 cm.
  - Plant height, soil level to top of floral plane.—About 20.5 cm.
  - Plant width.—About 16.5 cm.
  - Lateral branch description.—Quantity per plant: About six to seven primary lateral branches each with potentially two secondary branches developing at every node during the flowering season. Length: About 9.5 cm. Diameter: About 1.5 mm. Internode length: About 1.5 cm. Strength: Moderately strong; flexible. Aspect: Mostly upright. Texture and luster: Densely tomentose; slightly glossy. Color, developing: Close to 144A to 144B. Color, developed: Close to 144B.
  - Leaf description.—Arrangement: Opposite, simple; sessile. Length, largest leaves: About 3.75 cm. Width, largest leaves: About 6 mm. Shape: Linear. Apex: Sharply acute. Base: Cuneate. Margin: Entire; slightly to moderately revolute. Texture and luster, upper surface: Densely pubescent; matte. Texture and luster, lower surface: Moderately to densely pubescent; matte. Fragrance: Strongly aromatic, pungent. Venation pattern: Pinnate. Color: Developing leaves, upper surface: Close to 137B. Developing leaves, lower surface: Close to 138B. Fully expanded leaves, upper surface: Close to NN137B to NN137C; venation, close to 144A to 144B. Fully expanded leaves, lower surface: Close to 137B; venation, close to 137B.
Flower description:
- - Flower type, arrangement and habit.—Small single salverform flowers arranged in verticillasters on terminal cylindrical spikes; freely flowering habit with about 60 to 80 flowers developing in five to seven whorls per inflorescence and numerous inflorescences developing per plant during the flowering season; flowers with two-lobed upper lip and three-lobed lower lip; flowers face mostly outwardly on the spike.
  - Natural flowering season.—Relatively long flowering period; continuous from late winter to late spring/early summer in Australia.
  - Flower longevity on the plant.—Inflorescences last about one month on the plant; flowers not persistent.
  - Fragrance.—Resinous, pungent.
  - Flower buds.—Length: About 7 mm. Diameter: About 3.5 mm. Shape: Ovoid. Color: Close to 143A.
  - Inflorescence height.—About 2.1 cm, excluding terminal bracts.
  - Inflorescence diameter.—About 1.4 cm, excluding terminal bracts.
  - Flower diameter.—About 2.5 mm.
  - Flower depth (height).—About 4 mm, including tube.
  - Flower tube length.—About 2.5 mm.
  - Flower tube diameter.—Less than 1 mm.
  - Petals.—Quantity and arrangement: Upper lip, two-lobed and lower lip, three-lobed. Length, upper and lower lips: About 1.9 mm. Width, upper and lower lips: About 1.4 mm. Shape, upper lip: Obovate. Shape, lower lip: Ovate. Apex, upper and lower lips: Obtuse, rounded. Margin, upper and lower lips: Entire; slightly undulate. Texture and luster, upper (inner) surface, upper and lower lips: Smooth, glabrous; slightly velvety; matte. Texture and luster, lower (outer) surface, upper and lower lips: Smooth, glabrous; slightly velvety; slightly glossy. Color, upper and lower lips: When opening and fully opened, upper (inner) and lower (outer) surfaces: Close to 65D; color becoming closer to 178A in color with subsequent development.
  - Basal flower bracts.—Quantity and arrangement: Each group of flowers is subtended by a single basal flower bract. Length: About 1.1 cm. Width: About 9 mm. Shape: Cordate. Apex: Cuspidate. Base: Truncate to somewhat cordate. Margin: Entire. Texture, upper and lower surfaces: Smooth, glabrous. Color, upper and lower surfaces: Translucent, close to 157C with venation, close to 143A.
  - Sterile flower bracts.—Quantity and arrangement: About four to six sterile flower bracts at apex of spike. Length: About 2.8 cm. Width: About 7.5 mm. Shape: Narrowly oblong; ruffled appearance. Apex: Acute. Base: Cuneate. Margin: Entire; undulate. Texture and luster, upper and lower surfaces: Smooth, glabrous; matte. Color, upper and lower surfaces: Close to NN155D variably tinged with close to 65C to 65D; color does not change with subsequent development.
  - Sepals.—Quantity and arrangement: Five, fused into a campanulate tube. Calyx length: About 6 mm. Calyx diameter: About 4 mm. Shape: Lanceolate. Apex: Acute. Margin: Entire. Texture and luster, upper (inner) and lower (outer) surfaces: Densely pubescent; matte. Color, upper (inner) and lower (outer) surfaces: Close to 143A.
  - Peduncles.—Length: About 6.25 cm. Diameter: About 1.5 mm. Aspect: Mostly upright. Strength: Moderately strong to strong; flexible. Texture and luster: Pubescent; matte. Color: Close to 144A to 144B.
  - Reproductive organs.—Stamens: Quantity per flower: Four. Anther shape: Reniform. Anther color: Close to 157D. Pollen amount: None observed. Pistils: Quantity per flower: One. Stigma shape: Club-shaped. Stigma color: Close to N79A. Ovary color: Close to 143A to 143B.
  - Seeds and fruits.—To date, seed and fruit production has not been observed on plants of the new Lavandula.
Pathogen & pest resistance: To date, plants of the new Lavandula have not been observed to be resistant to pathogens and pests common to Lavandula plants.
Garden performance: Plants of the new Lavandula have exhibited good garden performance and to tolerate rain and wind and temperatures ranging from 0° C. to 42° C.

Claims

It is claimed:

1. A new and distinct Lavandula plant named ‘IB61003’ as illustrated and described.