Geranium cinereum 'Ravpil':ainsi nommé initialement dans les brevets US Plant Patent PP12829 du 6 aout 2002 et CPVO grant du 15 aout 2002. Ce nom a été rejeté.C'est le brevet Canadien PBR du 3 mars 2006 (Licence 2399) sous le nom de G. 'Purple Pillow' qui est aujourd'hui la référence. 

Description horticole :

Dr. Evrard 2005:Petite rosette de feuilles basales gris cendrées et fleurs pourpre foncé avec des veines plus foncées et un centre noir. Un geranium pour le jardin alpin mais aussi en poterie. 15cm de haut et 25 cm de diamètre. Un coloris unique pour un geranium cinereum.

Notes :

BREVET Canadian PBR 2399

Variety Description

Varieties used for comparison: 'Splendens' and 'Carol'

Summary: 'Purple Pillow' has a slightly narrower leaf blade than 'Splendens'. The leaves of 'Purple Pillow' are dark greyish green while the leaves of the reference varieties are dark green. The flowers of 'Purple Pillow' are dark violet in colour with strong venation and white colour between the veins and towards the base while 'Splendens' has solid violet flowers and 'Carol' has purple flowers with white colour between the veins and towards the base.

Description:

'Purple Pillow' is a vegetatively reproduced, perennial geranium variety. 'Purple Pillow' has a mounded growth habit. The stems are dark green in colour and have medium to dense pubescence.

The simple leaves are arranged in a rosette and are orbicular in shape with an acute shaped apex and cordate to sagittate shaped base. The leaf margin is lobed. The upper and lower side of the leaf blade has medium to dense pubescence. The upper side of the leaf blade is dark grey green in colour and there is no leaf variegation.

'Purple Pillow' flowers early in the season and flowers once for a long period of time. The peduncle has no anthocyanin. The flowers are simple and axillary in position. The flower has an erect attitude. There are five petals which are touching. The petals are rounded in shape with a retuse apex. The petals have no pubescence on the upper side. The flowers are dark violet in colour.

Origin & Breeding History: 'Purple Pillow' originated as a naturally occurring sport in a grouping of Geranium cinereum 'Lawrence Flatman' plants at Bridgemere Nurseries Ltd., Cheshire, United Kingdom. It was discovered in June of 1989.

Tests & Trials: 'Purple Pillow' was tested at Oxford Station, Ontario in the summer/fall of 2004. The trial included 10 plants per variety which were grown in the field. Plants were spaced .35 meters apart. All colour characteristics were determined using the Royal Horticultural Society (RHS) Colour Chart (1995 green box edition) and measured characteristics were based on ten measurements.

Comparison tables for 'Purple Pillow' with reference varieties 'Splendens' and 'Carol'

Leaf length (cm)

Main colour of the petal (RHS)

Date modified: 

2016-12-0

DETAILED BOTANICAL DESCRIPTION 

In the following description, color references are made to The Royal Horticultural Society Colour Chart except where general terms of ordinary dictionary significance are used. Plants used for the following description were about 30 weeks old and grown in the field conditions which closely approximate commercial production conditions during the spring and summer in Cheshire, United Kingdom. Botanical classification: Geranium cinereum cultivar Ravpil. Parentage: Naturally-occurring whole plant mutation of Geranium cinereum cultivar Laurence Flatman, not patented. Propagation: Type cutting.--By cuttings. Time to initiate roots.--About 21 to 28 days at 18.degree. C. Time to produce a rooted liner.--About 90 days at 18.degree. C. Root description.--Thick in diameter. Plant description: Form.--Perennial flowering plant; mounding and prostrate. Appropriate for 17-cm containers. Crop time.--After rooting, about 20 to 30 weeks are required to produce finished flowering plants in 17-cm containers. Plant height.--About 15 cm. Plant diameter.--About 35 cm. Vigor.--Moderate to vigorous. Foliage description.--Leaves basal, simple, generally symmetrical, and long-persisting. Length: About 3 cm. Width: About 3.5 cm. Shape: Palmately lobed. Apex: Acute. Base: Sagittate. Margin: Deeply serrate to incised. Texture: Both surfaces pubescent. Fragrance: Faint spicy fragrance when rubbed, pleasant. Petiole: Length: About 9 cm. Diameter: About 1.2 mm. Color: Young foliage, upper surface: 137A to 137B. Young foliage, lower surface: 137D. Mature foliage, upper surface: 137B; veins, 137A. Mature foliage, lower surface: 137D; veins, 137D. Petiole: 144A to 145A. Flower description: Appearance.--Single rounded cup-shaped flowers with five petals. Flowering stems arise from the plant base. Flowers not persistent. Quantity of flowers.--About 8 flowers per flowering stem. Natural flowering season.--Summer in the Netherlands; flowering continuous. Fragrance.--None detected. Flower longevity.--About 3 days. Flower size.--Length: About 2.8 cm. Diameter: About 1 cm. Flower buds (before showing color).--Length: About 8 mm. Diameter: About 5 mm. Shape: Obovate. Color: 191A to 191B. Petals.--Length: About 1.3 cm. Width: About 1 cm. Shape: Obcordate; apex, retuse; margin, entire with short hairs. Texture: Somewhat rugose. Color: When opening, upper surface: 71A; veins slightly darker than 71A. When opening, lower surface: 70A to 70B. Fully opened, upper surface: 71B; veins darker than 71A. Fully opened, lower surface: 70B to 72B. Sepals.--Quantity: Five. Calyx length: About 6 mm. Calyx diameter: About 1.5 cm. Shape: Oval to oblong; apex, mucronate; margin, entire. Texture: Pubescent. Color: Upper surface: 141A to 141B. Lower surface: 191B. Pedicel.--Length: About 2.5 cm. Angle: About 30 to 40.degree. from vertical. Strength: Moderate to weak. Color: 144A to 145A. Peduncle.--Length: About 15 cm. Diameter: About 1.5 mm. Aspect: Mostly upright or outwardly angled. Texture: Pubescent. Color: 144A to 145A. Reproductive organs.--Stamens: Quantity: Ten. Anther shape: Ovate to oblong; dorsifixed. Anther length: About 2.5 mm. Anther color: Purple. Pollen amount: Scarce. Pistils: Quantity: Five. Pistil length: About 8 mm. Style length: About 6 mm. Style color: 144A to 145A. Stigma color: 187A to 187B. Ovary color: 144A to 145A. Seed description.--Seed development has not been observed. Disease resistance: Plants of the new Geranium have been noted to be resistant to pathogens common to Geranium.