<i>Penstemon </i>plant named ‘Dopensprisprim’

Abstract

A new and distinct cultivar of Penstemon plant named ‘Dopensprisprim’, characterized by its upright plant habit; vigorous growth habit and rapid growth rate; freely branching habit; freely flowering habit; long flowering period; relatively large light pink-colored flowers; and good garden performance.

Claims

1. A new and distinct Penstemon plant named ‘Dopensprisprim’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPH

(1) The accompanying colored photograph illustrates the overall appearance of the new Penstemon 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 Penstemon plant.

(2) The photograph is a side perspective view of typical flowering plant of ‘Dopensprisprim’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

(3) The aforementioned photograph and following observations, measurements and values describe plants grown during the summer in 17-cm containers initially in a glass-covered greenhouse and finished in an outdoor nursery in Aalsmeer, The Netherlands and under cultural practices typical of commercial Penstemon production. During the production of the plants, day temperatures averaged 21° C. and night temperatures averaged 15° C. Plants were 22 weeks old when the photograph and detailed description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, Second Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Penstemon barbatus ‘Dopensprisprim’. Parentage: Female, or seed, parent.—Proprietary selection of Penstemon barbatus identified as code number PE15-000019-005, not patented. Male, or pollen, parent.—Unknown selection of Penstemon barbatus, not patented. Propagation: Type.—By vegetative cuttings. Time to initiate roots, summer.—About 12 days at temperatures about 26° C. Time to initiate roots, winter.—About 16 days at temperatures about 23° C. Time to produce a rooted young plant, summer.—About 16 days at temperatures about 23° C. Time to produce a rooted young plant, winter.—About 20 days at temperatures about 18° C. Root description.—Medium in thickness, fibrous; typically white 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.—Moderately freely branching; medium density. Plant description: Plant and growth habit.—Herbaceous perennial typically grown as a container and garden plant; upright plant habit; vigorous growth habit and rapid growth rate. Plant height.—About 37 cm. Plant width (spread).—About 28 cm. Lateral branches.—Quantity of lateral branches: Freely branching habit, about 14 lateral branches develop per plant. Length: About 36 cm. Diameter: About 4 mm. Internode length: About 4.5 cm. Strength: Strong. Aspect: Upright to about 30° from vertical. Texture and luster: Smooth, glabrous; semi-glossy. Color, developing and developed: Close to 144B. Leaf description: Arrangement.—Opposite, simple; decussate and sessile. Length.—About 11 cm. Width.—About 1.8 cm. Shape.—Lanceolate. Apex.—Acuminate. Base.—Cuneate. Margin.—Entire; occasionally slightly undulate. Texture and luster, upper and lower surfaces.—Smooth, glabrous; glossy. Venation pattern.—Pinnate. Color.—Developing and fully expanded leaves, upper surface: Close to 137A; venation, close to 137A. Developing and fully expanded leaves, lower surface: Close to 138B; venation, close to 138C. Flower description: Flower shape, arrangement and flowering habit.—Single bi-labiate flowers arranged on terminal racemes; flowers face mostly outwardly; freely flowering with about 30 flowers developing per inflorescence and about 560 flowers developing per plant during the flowering season. Fragrance.—Faintly fragrant; pleasant. Time to flower.—Early flowering habit, plants begin to flower about 14 weeks after planting. Natural flowering season.—Long flowering period, plants flower for about eight to ten weeks during the summer in The Netherlands; flowers not persistent. Flower buds.—Length: About 2.5 cm. Diameter: About 8 mm. Shape: Elongate ovoid. Texture and luster: Smooth, glabrous; semi-glossy. Color: Close to 62A. Inflorescence height.—About 21 cm. Inflorescence diameter.—About 7 cm. Flower width (horizontal).—About 2 cm. Flower length (vertical).—About 2 cm. Flower depth.—About 3 cm. Flower throat diameter.—About 1 cm. Flower tube length.—About 1.5 cm. Flower tube diameter.—About 1 cm. Petals.—Arrangement: Five, fused into a tube; bi-labiate, upper lip with two upper petals and lower lip with three lower petals. Lobe length, upper and lower lips: About 1 cm. Lobe width, upper and lower lips: About 6 mm. Lobe shape: Oblong. Lobe apex: Obtuse. Lobe margin: Entire; not undulate. Lobe texture and luster, upper surface: Smooth, glabrous; matte. Lobe texture and luster, lower surface: Pubescent; matte. Throat, texture: Smooth, glabrous. Tube, texture: Smooth, glabrous. Color: Lobes, when opening, upper and lower surfaces: Close to 62A. Lobes, fully opened, upper surface: Close to 62A; venation, close to 77A; color becoming closer to 62C with subsequent development. Lobes, fully opened, lower surface: Close to 62A; venation, close to 62A; color becoming closer to 62C with subsequent development. Flower throat: Close to 62A; venation, close to 77A. Flower tube: Close to 62A; venation, close to 62A. Sepals.—Arrangement: Five sepals fused in a single whorl. Length: About 3 mm. Width: About 2 mm. Shape: Rhomboidal. Apex: Acute. Margin: Entire. Texture and luster, upper and lower surfaces: Smooth, glabrous; glossy. Color: When opening and fully developed, upper surface: Close to 143A. When opening and fully developed, lower surface: Close to 143A. Peduncles.—Length: About 1 cm. Diameter: About 1 mm. Aspect: About 5° from stem axis. Strength: Moderately strong. Texture and luster: Smooth, glabrous; glossy. Color: Close to 144A. Pedicels.—Length: About 1 cm. Diameter: About 1 mm. Aspect: Upright to about 25° from peduncle axis. Strength: Weak. Texture and luster: Smooth, glabrous; glossy. Color: Close to 144A. Reproductive organs.—Stamens: Quantity per flower: Four. Filament length: About 2.4 cm. Filament color: Close to 155D. Anther size: About 1 mm by 3 mm. Anther shape: Oblong. Anther color: Close to 155D. Pollen amount: Abundant. Pollen color: Close to 158C. Pistils: Quantity per flower: One. Pistil length: About 2.5 cm. Style length: About 1.9 cm. Style color: Close to 77D. Stigma diameter: About 0.5 mm. Stigma shape: Capitate. Stigma color: Close to 155A. Ovary color: Close to 144B. Seeds and fruits.—To date, seed and fruit development have not been observed on plants of the new Penstemon. Garden performance: Plants of the new Penstemon have been observed to have good garden performance and tolerate rain, wind and temperatures ranging from −25° C. to 35° C. and to be suitable for USDA Hardiness Zone 5. Pathogen & pest resistance: To date, plants of the new Penstemon have not been observed to be resistant to pathogens and pests common to Penstemon plants.