<i>Delosperma </i>plant named ‘T1821’

Abstract

A new cultivar of Delosperma plant named ‘T1821’ that is characterized by its very large flowers, its very floriferous and long blooming flowering habit; blooming from early summer to early autumn, its flowers that are intense orange in color, and its low-growing plant habit.

Claims

1. A new and distinct variety of Delosperma plant named ‘T1821’ as described and illustrated herein.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying color photographs illustrate the overall appearance and distinct characteristics of the new Delosperma.

(2) The photograph in FIG. 1 was taken of a 6-month-old plant as grown in a 3-liter container outdoors in Chicago, Ill. and provides a top view of ‘T1821’ in bloom.

(3) The photograph in FIG. 2 was taken of a plant 4 months in age as grown in an unheated greenhouse in a 15-cm container in Noordwijkerhout, The Netherlands and provides a close-up view of a flower of ‘T1821’.

(4) The 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 Delosperma.

DETAILED BOTANICAL DESCRIPTION

(5) The following is a detailed description of 4-month-old plants of the new cultivar as grown in 15-cm containers in an unheated greenhouse in Noordwijkerhout, 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; reprint 2019 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 summer to early autumn in The Netherlands. Plant type.—Evergreen perennial. Plant habit.—Flattened, prostrate. Height and spread.—Reaches an average of 7 cm in height and about 25 cm in width as a 4-month old plant in a container. Cold hardiness.—Observed to be hardy to at least U.S.D.A. Zone 7. Diseases and pests.—No susceptibility or resistance to diseases or pests has been observed. Root description.—Fibrous roots, primarily 161D in color. Propagation.—Stem cuttings. Root development.—8 weeks for root initiation, 4 months from a plug to young plant in a P9 container. Growth habit.—Moderate. Stem description: Shape.—Round. Stem color.—Young stems; 145B with 183A, older stems 145A and 199C. Stem size.—Lateral branches; an average of 11.5 cm in length and 3 mm in diameter. Internode length.—An average of 1.7 cm. Stem substance.—Succulent. Stem surface.—Moderately glossy, moderately pubescent with very short glandular hairs; an average of 0.2 mm in length and closest to 155C in color. Branching habit.—Freely branching both basal and lateral, an average of 12 lateral branches per stem. Foliage description: Leaf shape.—Ligulate, triangular in diameter. Leaf substance.—Succulent. Leaf division.—Simple. Leaf base.—Cuneate. Leaf apex.—Acute. Leaf venation.—No veins visible. Leaf margins.—Entire. Leaf arrangement.—Opposite. Leaf surface (upper and lower surface).—Slightly glossy, sparsely to moderately pubescent with very short glandular hairs; an average of 0.2 mm in length, 157D in color. Leaf color.—137A, base 145A. Leaf size.—About 2.7 cm in length and 5 mm in width. Leaf quantity.—Average of 12 (6 pairs) per lateral branch. Leaf attachment.—Sessile. Inflorescence description: Inflorescence type.—Flowers solitary, terminal. Flower number.—An average of 1 per lateral stem. Flower fragrance.—Faint, sweet and pleasant. Flower aspect.—Outward to upright. Flower longevity.—A few days, self-cleaning. Flower type.—Single. Flower size.—Average of 5 cm in diameter and 1.3 cm in depth. Flower buds.—Broadly ovate to oblong in shape, an average of 1 cm in length and 5 mm in diameter, color; 138A with sepal portion 137C, surface texture is smooth and glassy with the sepal portion smooth and dull. Calyx.—Rotate in shape, average of 6 mm in depth and 1.8 cm in diameter. Sepals.—5, rotate, ovate in shape, margin entire, an average of 7 mm in length and 3 mm in width, broadly acute apex, broadly cuneate base, surface is smooth and dull, color young upper and lower surface; 137C, base 145A, color mature upper and lower surface; 137A. Petals.—An average of 42 per flower, rotate and slightly curved downward, oblanceolate in shape, surface is smooth and glossy on both surfaces, margin entire, apex obtuse, base cuneate, an average of 2.1 cm in length and 2.3 mm in width, color: opening and fully open upper and lower surface 22A, base 28A, non-fading on both surfaces. Petaloids.—An average of 20 per flower, rotate and near vertical surrounding stamens, lanceolate in shape, moderately to highly glossy on both surfaces, margin entire, apex obtuse, base truncate, an average of 1 cm in length and 1 mm in width, color: upper and lower surface 22A, with a hint of 28A. Peduncle.—Average of 1.8 cm in length and 2 mm in diameter, straight on top of lateral branch at 0°, color; a blend between 145A, surface moderately glossy, sparsely to moderately pubescent with very short glandular hairs. Pedicel.—None. Reproductive organs: Pistils.—5, an average of 2 mm in length, stigma; triangular shaped, style and stigma; (not distinguishable) combined an average of 2 mm in length and 151B in color, ovary; 143C in color. Stamens.—Average of 60, 12A in color, anthers; dorsifixed and narrowly oblong in shape, an average of 0.5 mm in diameter, filaments; 4 mm in length, NN155D in color, anthers; NN155D in color, pollen; moderate to high in quantity and 6A in color. Fruit.—Fruit and seed production was not observed under the conditions tested.