Campanula plant named ‘PKM06’

Abstract

A new and distinct cultivar of Campanula plant named PKM06, characterized by its compact plant habit; globular plant form; vigorous growth habit; double/filled light violet-blue flowers and small leaves.

Claims

1. A new and distinct cultivar of Campanula plant named PKM06, as illustrated and described herein.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying colored photographs illustrate the overall appearance of the new Campanula PKM06, 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 more accurately describe the actual colors of PKM06.

(2) FIG. 1 comprises a side perspective view of a typical flowering plant of PKM06 grown in a 10.5 cm pot.

(3) FIG. 2 comprises a close-up view of inflorescence of PKM06.

(4) FIG. 3 comprises a close-up view of flowers of PKM06.

DETAILED BOTANICAL DESCRIPTION

(5) The new Campanula PKM06 has not been observed under all possible environmental conditions. The phenotype of the new cultivar may vary with variations in environment such as growth regulator treatment, temperature, light intensity, day length, and fertility level without any variance in genotype.

(6) The aforementioned photographs, together with the following observations, measurements and values describe plants of the new Campanula PKM06 as grown under greenhouse conditions.

(7) The age of the PKM06 plants described is 3 months after propagation. Color references are made to The Royal Horticultural Society Colour Chart (R.H.S.), 5.sup.th edition, except where general colors of ordinary significance are used. Classification: Botanical.Campanula interspecific hybrid. Parentage: Female or seed parent.Campanula unpatented proprietary selection. Male or pollen parent.Campanula unpatented proprietary selection. Propagation: Type cutting.Terminal vegetative cuttings. Time to initiate roots.About 10 to 14 days at 18 to 21 C. in tunnels in a greenhouse. Root description.Fine, well branched. Plant description: Form.Upright plant habit. Double to filled wide campanulate flowers in panicles. Freely branching with lateral branches forming at every node. Crop time.After rooting, about 12 weeks are required to produce finished flowering plants in 10.5 cm pots. Plant height (from soil level to top of plant plane).About 16 cm. Depending on growth conditions. Plant width.About 25 cm. Depending on growth conditions. Stem.Color: green, RHS 138B. Form: Round, with recurrent leaf base. Vigor.Vigorous growth rate. Fruit/seed production.None observed. Foliage description: Basal leaf shape.Single, dentate, cordiform, palmate venation. Leaf shape (upper part).Ovate. Leaf blade length.Up to 3 cm. Longest in the basal part of the plant. Leaf blade width.Up to 3 cm. Widest in the basal part of the plant. Petiole length.Up to 4 cm. Longest in the basal part of the plant. Apex.Obtuse. Base.Truncate to slightly cordate. Margin.Serrate; depth of indentation 2-3 mm. Texture.Glabrous, stiff. Glossiness.None. Pubescence.None. Color.Upper Surface, RHS N137A, Green. Lower Surface, RHS 138B (Green). Venation color.Similar or lighter green than leaf blade, but areas too small to determine R.H.S. values. Leaf blade rugosity.No rugosity between leaf veins. Inflorescence description: Flower arrangement and shape.Single, upright, double to filled flowers in panicles with many flowers at lateral branches, flowers with star shaped sepals. Overall expression broadly campanulate; with some individual whorls more campanulate. Natural flowering season.Continuous throughout spring and summer. Season can be extended through long day treatments, no vernalization needed. Flower longevity.Individual flowers up to three weeks. Flowers persistent. Inflorescence size.Length: up to 17 cm. Flowers.Length: About 1.5 cm. Diameter: up to 3 cm. Layers of corollas (number of whorls): 3-5. Corolla.Length of tube: up to 10 mm. Length of lobe: up to 10 mm. Width of lobe: 10 mm. Tip of lobe: acute and twisted. Texture: Glabrous; no pubescence. Corolla color.Upper and Lower surfaces, RHS between 91A and 92B, violet-blue. Sepals.Arrangement: Free and sessile. Position: Changes with bud and flower development; sepals are full size early in corolla development, appearing stellate. Quantity per flower: 5. Length: 8 mm. Width: 1-2 mm. Overall shape: Triangular Tip: Acute. Margin: Entire. Color (mature and immature): Upper and lower surfaces: Green (areas too small to give R.H.S. values; nearly as leaf blade RHS 138B). Pedicel: Length: up to 3 cm. Diameter: up to 2 mm. Color: light green. Reproductive organs: Gynoecium.Pistil and Stigma: Shape: often malformed. Color: White green tip before opening. Pollen.Amount: None to very little. Color: When present, yellow (amount too small to determine R.H.S. value).