#The aforementioned photographs and following observations, measurements and values describe plants grown during the late spring and early summer in 15-cm containers in an outdoor nursery in Higashiomi, Shiga, Japan and under cultural practices typical of commercial Petunia production. During the production of the plants, day temperatures averaged 23° C. and night temperatures averaged 13° C. Plants were four months old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Petunia×hybrida ‘Sunsurf Kuritora’. Parentage: Female, or seed, parent.—Proprietary selection of Petunia×hybrida identified as code name Pf 104-1, not patented. Male, or pollen, parent.—Proprietary selection of Petunia×hybrida identified as code name Pf546-1, not patented. Propagation: Type.—By terminal cuttings. Time to initiate roots.—About one week at temperatures of 15° C. to 20° C. Time to produce a rooted young plant.—About three weeks at temperatures of 15° C. to 20° C. Root description.—Fibrous; white in color. Rooting habit.—Freely branching. Plant description: Plant and growth habit.—Compact and mounding plant habit; freely branching habit with numerous lateral branches developing per plant; pinching enhances lateral branch development; vigorous growth habit. Plant height.—About 21.6 cm. Plant diameter.—About 55.1 cm. Lateral branch description: Length.—About 13.2 cm. Diameter.—About 1.7 mm. Internode length.—About 2.5 cm. Strength.—Strong, flexible. Aspect.—Upright to outwardly. Texture.—Pubescent. Color.—Close to 143B. Foliage description: Arrangement.—Alternate, simple. Length.—About 3.6 cm. Width.—About 1.2 cm. Shape.—Elliptic. Apex.—Obtuse. Base.—Obtuse. Margin.—Entire. Texture, upper and lower surfaces.—Pubescent. Venation pattern.—Pinnate; reticulate. Color.—Developing leaves, upper surface: Close to 138A. Developing leaves, lower surface: Close to 138B. Fully expanded leaves, upper surface: Close to 137B; venation, close to 143B. Fully expanded leaves, lower surface: Close to 137D; venation, close to 143C. Petioles.—Length: About 5.9 mm. Diameter: About 0.7 mm. Texture, upper and lower surfaces: Pubescent. Color, upper and lower surfaces: Close to 143B. Flower description: Flower arrangement and habit.—Single salverform flowers arising from upper leaf axils; freely flowering habit with usually about 71 flowers developing per plant; flowers face upright to outwardly. Fragrance.—None detected. Natural flowering season.—Early flowering habit, plants of the new Petunia initiate and develop flowers about three to four weeks after planting; long flowering period; flowering commences naturally during the spring and plants flower continuously throughout the summer until late autumn in Japan. Flower longevity.—Individual flowers last about seven to ten days on the plant; flowers not persistent. Flower diameter.—Medium in size, about 4.5 cm. Flower length (depth).—About 4.6 cm. Throat diameter.—About 1.2 cm. Tube diameter, base.—About 3 mm. Tube length.—About 3.2 cm. Flower bud.—Shape: Cylindrical. Length: About 3.8 cm. Diameter: About 8.4 mm. Color: Close to 149B. Corolla.—Arrangement: Five petals fused at the base and opening into a flared trumpet. Petal length from throat: About 1.8 cm. Petal width: About 2.2 cm. Petal shape: Spatulate. Petal apex: Cuspidate. Petal margin: Entire; undulate. Petal texture, upper and lower surfaces: Smooth, glabrous. Throat texture: Smooth, glabrous. Tube texture: Pubescent. Color: Petal, when opening and fully opened, upper surface: Close to 8D; venation, close to 12B. Petal, when opening and fully opened, lower surface: Close to 4D; venation, close to 4D Throat: Close to 12B. Tube: Close to 8C. Calyx.—Arrangement: One star-shaped calyx tube with five sepals fused at the base per flower. Sepal length: About 1.2 cm. Sepal width: About 2.1 mm. Sepal shape: Lanceolate. Sepal apex: Obtuse. Sepal margin: Entire. Sepal texture, upper and lower surfaces: Pubescent. Color, immature, upper surface: Close to 137B. Color, immature, lower surface: Close to 143A. Color, mature, upper surface: Close to 137B. Color, mature, lower surface: Close to 137C. Peduncles.—Length: About 2.1 cm. Diameter: About 1 mm. Strength: Strong. Texture: Pubescent. Color: Close to 143B. Reproductive organs.—Stamens: Quantity per flower: Five. Stamen length: About 1.9 cm to 2.5 cm. Anther shape: Ellipsoidal. Anther size: About 1.8 mm by 2.6 mm. Anther color: Close to 4D. Pollen amount: Moderate. Pollen color: Close to 4D. Pistils: Quantity per flower: One. Pistil length: About 2.1 cm. Style color: Close to 145C. Stigma shape: Transversely ellipsoidal. Stigma color: Close to 141C. Ovary color: Close to 143B. Seeds and fruits: Seed and fruit development have not been observed on plants of the new Petunia. Garden performance: Plants of the new Petunia have been observed to have good garden performance and to tolerate rain, wind and temperatures ranging from about 5° C. to about 35° C. Pathogen & pest resistance: Plants of the new Petunia have not been observed to be resistant to pathogens and pests common to Petunia plants.