<i>Saxifraga </i>plant named ‘SH 1934’

Abstract

A new and distinct cultivar of Saxifraga plant named SH 1934, characterized by its broadly upright and mounded plant habit; moderately vigorous to vigorous growth habit and moderate growth rate; leaves with dark green-colored upper surfaces and dark red-colored lower surfaces; freely flowering habit; and purplish red-colored flowers that are held above the foliar plane.

Claims

1. A new and distinct Saxifraga plant named SH 1934 as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying colored photographs illustrate the overall appearance of the new Saxifraga plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. 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 Saxifraga plant.

(2) The photograph at the top of the first sheet (FIG. 1) is a side perspective view of a typical flowering plant of SH 1934 grown in a container.

(3) The photograph at the bottom of the first sheet (FIG. 2) is a close-up view of a typical flowering plant of SH 1934.

(4) The photograph at the top of the second sheet (FIG. 3) is a close-up view of the upper surface of a typical leaf of SH 1934.

(5) The photograph at the bottom of the second sheet (FIG. 4) is a close-up view of the lower surface of a typical leaf of SH 1934.

DETAILED BOTANICAL DESCRIPTION

(6) The aforementioned photographs and following observations, measurements and values describe plants grown during the late autumn in 12-cm containers in a glass-covered greenhouse in Glandorf, Germany and under cultural practices typical of commercial Saxifraga production. During the production of the plants, day temperatures ranged from 18 C to 28 C and night temperatures ranged from 14 C to 20 C. Plants were six months old when the photographs and the description were taken. In the following 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: Saxifraga cortusifolia SH 1934. Parentage: Female, or seed, parent.Proprietary selection of Saxifraga cortusifolia disclosed as code number 17-843, not patented. Male, or pollen, parent.Proprietary selection of Saxifraga cortusifolia disclosed as code number 16-087, not patented. Propagation: Type.In vitro axillary meristem culture. Time to initiate roots, winter.About 55 days at temperatures about 12 C. Time to produce a rooted young plant, winter.About 170 days at temperatures about 4 C to 15 C. Root description.Fine to thick, fleshy; typically white to brownish in color; actual color of the roots is dependent on substrate composition, water quality, fertilizer type and formulation, substrate temperature and physiological age of roots. Rooting habit.Low amount of branching; sparse. Plant description: Plant and growth habit.Herbaceous perennial; broadly upright and mounding plant habit with flowers held above the foliar plane; overall plant shape, flattened globular; moderately vigorous to vigorous growth habit and moderate growth rate. Plant height, soil level to top of foliar plane.About 13.4 cm. Plant height, soil level to top of floral plane.About 29.8 cm. Plant diameter (area of spread).About 28 cm. Leaf description: Arrangement.Leaves arranged in a basal rosette; alternate and single; about 14 basal rosettes per plant. Length.About 5 cm. Width.About 7 cm. Shape.Reniform in outline; palmately lobed. Apex.Broadly acute. Base.Truncate to shallowly hastate, lobes free. Margin.Shallowly dentate to serrate and palmately lobed with about nine lobes per leaf; sinuses shallow in depth and divergent. Texture and luster, upper surface.Sparsely pubescent; not rugose; slightly glossy. Texture and luster, lower surface.Sparsely pubescent; not rugose; moderately glossy. Venation pattern.Pinnate. Color.Developing leaves, upper surface: Slightly darker than 147A; narrow marginal edges, close to 200A. Developing leaves, lower surface: Close to 187B to 187C. Fully developed leaves, upper surface: Slightly darker than a blend of NN137B and 147A; narrow marginal edges, close to 200A; venation, slightly darker than a blend of NN137B and 147A tinged with close to 197A. Fully developed leaves, lower surface: Close to 183B; lobe venation, close to 186B. Petioles.Length: About 10.4 cm. Diameter: About 3.5 mm. Strength: Weak. Texture and luster, upper and lower surfaces: Sparsely pubescent; slightly glossy. Color, upper surface: Close to 178A; distally, tinged with close to 152A. Color, lower surface: Close to 148A; distally, close to 148B. Stipules.Quantity and arrangement: Two at the base of each petiole. Length: About 1.3 cm. Width: About 6.5 mm. Shape: Reniform with fimbriate apices and margins. Color, upper and lower surfaces: Close to 187C. Flower description: Flower shape and habit.Rotate flowers arranged in terminal compound corymbs; freely flowering habit with about 45 flowers per inflorescence and about 630 flowers developing per plant; flowers face mostly upright to slightly outwardly. Fragrance.None detected. Natural flowering season.Plants begin flowering about six months after planting; plants flower naturally during the autumn in Germany. Flower longevity on the plant.About two weeks; flowers persistent. Flower buds.Length: About 2.5 mm. Diameter: About 2.25 mm. Shape: Broadly ovate to close to globular. Texture and luster: Smooth, glabrous; slightly glossy. Color: Immature petals, close to 185B; immature sepals, close to N186C. Inflorescence height (including peduncle).About 26.9 cm. Inflorescence diameter.About 13.3 cm. Flower diameter.About 2 cm by 2.1 cm. Flower depth (height).About 6 mm. Petals.Quantity and arrangement: About eight, varying between six and twelve, arranged in a single whorl; upper three or four petals are smaller than lower one or two petals. Length, upper petals: About 6 mm to 9 mm. Length, lower petals: About 15 mm to 18 mm. Width, upper petals: About 3 mm to 4 mm. Width, lower petals: About 5 mm to 6 mm. Shape, upper petals: Elliptic to ovate. Shape, lower petals: Narrowly elliptic to oblanceolate. Apex, upper petals: Acute. Apex, lower petals: Acute, occasionally cleft. Base, upper and lower petals: Attenuate. Margin, upper and lower petals: Entire; not undulate. Texture and luster, upper and lower petals, upper and lower surfaces: Smooth, glabrous; slightly velvety; matte. Color: When opening, upper petals, upper surface: Close to 61B; apices, close to 59A. When opening, lower petals, upper surface: Close to 60B; apices, close to 59A. When opening, upper and lower petals, lower surface: Close to 60D; apices, close to 59A. Fully opened, upper and lower petals, upper surface: Close to 61B; towards the base, close to 61C; towards the apex, close to 60A; venation, similar to lamina colors; with subsequent development, color becoming closer to a blend of 59B and 187D. Fully opened, upper and lower petals, lower surface: Close to 64D; towards the margins and the apex, close to 60A to 60B; venation, similar to lamina colors; with subsequent development, color becoming closer to 64B. Sepals.Quantity and arrangement: Five, arranged in a single whorl. Length: About 3 mm. Width: About 1.25 mm. Shape: Ovate. Apex: Obtuse. Base: Broadly cuneate. Margin: Entire. Texture and luster, upper surface: Smooth, glabrous; matte. Texture and luster, lower surface: Smooth, glabrous; moderately glossy. Color: When opening and fully opened, upper surface: Close to 183A to 183B; towards the base, close to 147C. When opening and fully opened, lower surface: Close to 183A. Peduncles.Length: About 25.5 cm. Diameter: About 3 mm. Aspect: About 20 degrees from vertical; secondary peduncles, about 35 degrees from main peduncle axis. Strength: Moderately weak. Texture and luster: Sparsely pubescent; moderately glossy. Color: Close to 187A to 187B. Pedicels.Length: About 1.3 cm. Diameter: About 0.5 mm. Aspect: About 30 degrees from peduncle axis. Strength: Moderately strong. Texture and luster: Sparsely pubescent; slightly glossy. Color: Close to 197A to 197B; proximally, tinged with close to 183B to 183C. Reproductive organs.Stamens: Quantity per flower: About ten. Filament length: About 3.25 mm. Filament color: Close to 155D; becoming close to 186D with subsequent development. Anther shape: Double reniform. Anther size: About 0.5 mm by 0.5 mm. Anther color: Close to 187B. Pollen amount: Scarce. Pollen color: Close to 26C to 26D. Pistils: Quantity per flower: About two. Pistil length: About 3.5 mm. Stigma diameter: About 0.2 mm. Stigma shape: Club-shaped. Stigma color: Close to 157A. Style length: About 3.25 mm. Style color: Close to 145D. Ovary color: Close to 145B. Floral bracts: Quantity per flower: One. Length: About 8 mm. Diameter: About 2 mm. Shape: Narrowly oblong to lanceolate. Apex: Bluntly acute. Base: Broadly cuneate. Margin: Entire. Color, upper and lower surfaces: Close to a blend of N186C and 200A. Seeds and fruits: To date, seed and fruit development have not been observed on plants of the new Saxifraga. Temperature tolerance: Plants of the new Saxifraga have been observed to tolerate temperatures ranging from about ?7 C to about 35 C and to be suitable for USDA Hardiness Zones 8b through 11. Pathogen & pest resistance: To date, plants of the new Saxifraga have not been observed to be resistant to pathogens and pests common to Saxifraga plants.