Hibiscus plant named ‘ROSINA’

Abstract

A new and distinct Hibiscus cultivar named ROSINA is disclosed, characterized by clear light lavender single flowers without a distinctive dark eye. Plants are extremely dwarf and have lush dark green foliage. The new variety is a Hibiscus, normally produced as an outdoor garden or container plant.

Claims

1. A new and distinct cultivar of Hibiscus plant named ROSINA as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying photograph in FIG. 1 illustrates in full color a typical plant of ROSINA grown in the ground outdoors in Grand Haven, Mich.

(2) FIG. 2 illustrates in full color a typical flower of ROSINA. Age of the plant photographed is approximately 2 years.

(3) The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

(4) In the following description, color references are made to The Royal Horticultural Society Colour Chart 2015, 6.sup.th edition, except where general terms of ordinary dictionary significance are used. The following observations and measurements describe ROSINA plants grown in a polyhouse in Grand Haven, Mich. Measurements were taken during the July of 2015. The plants were 2 years old in 3 gallon containers. The growing temperature ranged from approximately 18 C. to 27 C. during the day and 5 C. to 10 C. Measurements and numerical values represent averages of typical plant types. Botanical classification: Hibiscus paramutabilissyriacus ROSINA.

PROPAGATION

(5) Time to initiate roots: 20 days at approximately 25 C. Root description: Fibrous, medium root thickness. Tan/brown in color, not effectively measured with a color chart. Time to produce a rooted young plant: About 90 days at 25 C.

PLANT

(6) Plant type: Perennial shrub. Age of plant described: Approximately 2 years old. Growth habit: Upright, globular. Pot size of plant described: 3 gallon pot. Height: 50 cm. Plant spread: 73 cm. Plant vigor: Strong dwarf plant. Branching characteristics: Branching near base. Some pinching required to encourage a denser plant habit. Length of primary lateral branches: 50 cm. Diameter of lateral branches: 3 mm. Quantity of lateral branches: Average 5. Stem: Stem shape.Round. Stem strength.Sturdy and rigid. Color.Stem: Near yellow-Green 145A, overlay Greyed-Green 194B. Bark: Near RHS Grey-Brown 199B with a hint of Yellow-Green 145A. Texture.Woody with bark. Angle of attachment.Average angle 30 to 45 from center of plant. Internode length: 5.3 cm on average.

FOLIAGE

(7) Leaf: Arrangement.Single leaves, 3 to 4 protruding from same node on same side of stem. Leaf shape.Hastate. Average length.10 to 12 cm. Average width.8 cm. Apex.Acuminate. Base.Cuneate. Margin.Lobed and coarsely crenate. Texture of top surface.Smooth and slightly scabrose. Texture of bottom surface.Smooth and slightly scabrose with distinct veins. Color.Young foliage upper side: Near RHS Green 141A. Young foliage under side: Near RHS Yellow-Green 146B. Mature foliage upper side: Near RHS Green 139A. Mature foliage under side: Near RHS Yellow-Green 147B. Venation.Pattern: Palmate. Venation coloration: Prominent feature in leaf blade. Color upper side: Near RHS Yellow-Green 145A. Color under side: Near RHS Yellow-Green 145C. Petiole.Average Length: 3 to 7 cm. Diameter: 3 mm. Petiole color upper side: Near RHS Green 137B over a hint of Yellow-Green 145A. Petiole color lower side: Near RHS Green 137C over a hint of 145B. Petiole Texture upper side: Slightly pubescent. Petiole Texture lower side: Smooth. Stipules.2 stipules on either side of leaf grouping. 8 mm long, less than 1 mm wide, colored near Grey-Brown 199D.

FLOWER

(8) Natural flowering season: Late Spring through Late Summer. Flowering form: Single, rotate. Flower habit: Solitary, emerging from leaf axils. Flower longevity on plant: About 2 to 3 days. Quantity of flowers per plant: About 50 flowers and buds on a mature plant in full bloom. Flower aspect: Upright and outward. Size: Length.8 to 9 cm. Diameter.6 to 11 cm. Flower other characteristics: Persistence.Self-cleaning. Fragrance.Subtle floral scent. Bud: Shape.Oval. Length.Average 2.0 to 4.0 cm, depending on maturity. Diameter.Average 1.0 to 2.0 cm, depending on maturity. Color.Near Purple 75A, striations of White 155D. Petal: Petal arrangement.Single overlapping whorl. Number of petals per flower.5. Fused.No. Petal shape.Obovate. Petal base.Attenuate. Margin.Undulate. Tip shape.Obutuse. Length.5.0 cm. Width.4.0 cm. Texture.Upper: Glabrous, soft. Lower: Glabrous, soft. Appearance.Delicate, with slightly matte appearance upper and lower surfaces. Petal color: When opening.Upper surface: Base of Purple Group 75B, with shading of Purple-Violet Group 82B into Violet Blue 90A. Lower surface: Base of Purple 75C, with shading of Purple-Violet Group 82C into Violet-Blue 90B. Fully opened.Upper surface: Base of Purple Group 75A with shading into Violet-Blue Group 89C. Lower surface: Base of Purple Group 75A with shading into Violet-Blue Group 89C. Fading to.Upper surface: Base of Purple Group 75A fading to Violet-Blue Group 89C. Lower surface: Base of Purple Group 75A with fading to Violet-Blue Group 89C. Sepal: Arrangement.Radial. Number.Average 5 or 6. Shape.Narrow deltate. Tip.Narrowly acute. Base.Truncate. Margin.Entire. Length.3.5 cm. Width.2 mm. Texture, upper.Glabrous. Texture, lower.Glabrous. Color.Mature: Upper surface: Near Green 139B. Under surface Near Green 139B. Calyx: Shape.Funnelform. Length.2.5 cm. Diameter.1.5 cm. Peduncle: Length.5 cm. Diameter.3 mm. Color.Near RHS Yellow-Green 146B. Orientation.25. Strength.Rigid. Texture.Slightly pubescent.

REPRODUCTIVE ORGANS

(9) Stamens: Number.Average 48, clustered and implanted in style, typical of Hibiscus. Filament length.6 mm. Filament color.Near RHS White 155A. Anthers: Shape.Narrow globular. Length.2 mm. Color.Near RHS White 155A. Pollen color.Near RHS White 155A. Pollen amount.Moderate. Pistil: Number.1. Length.4.25 cm. Style.Length: 3.7 cm. Color: Near RHS White 155C. Stigma.Shape: Peltate. Color: Near RHS White 155A. Ovary color.Near RHS White 155C with light shading of Red-Purple 60B.

OTHER CHARACTERISTICS

(10) Seeds and fruits: Not observed to date. Disease/pest resistance: Neither resistance nor susceptibility to normal diseases and pests of Hibiscus paramutabilissyriacus have been observed. Garden performance: Good tolerance for wind and rainy conditions. Temperature tolerance: Low temperature tolerance to 26 C., high temperature tolerance to 35 C.