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Phlox plant named `Cosmopolitan`
PP19603 Phlox plant named `Cosmopolitan`
Patent Drawings:

Inventor: Verschoor
Date Issued: December 30, 2008
Application: 11/985,903
Filed: November 19, 2007
Inventors: Verschoor; Jan (Haarlem, NL)
Assignee: Witteman & Co (Hillegom, NL)
Primary Examiner: Para; Annette H
Assistant Examiner: McCormick Ewoldt; S. B.
Attorney Or Agent: Jondle & Associates, P.C.
U.S. Class: PLT/320
Field Of Search: PLT/320
International Class: A01H 5/00
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: A new phlox plant particularly distinguished by hot pink flower color, compact plant habit, healthy foliage and good mildew resistance, is disclosed.
Claim: I claim:

1. A new and distinct cultivar of phlox plant as shown and described herein.
Description: Genus and species: Phlox paniculata.

Variety denomination: `Cosmopolitan`


The present invention comprises a new and distinct cultivar of phlox, botanically known as Phlox paniculata, and hereinafter referred to by the cultivar name `Cosmopolitan`. The new cultivar originated from an open pollination in 2005 inHaarlem, The Netherlands between unknown male and female Phlox paniculata plants.

The new cultivar was selected from the results of the open pollination in 2006 in Haarlem, The Netherlands and has been asexually reproduced through two generations by vegetative cuttings in Haarlem, The Netherlands since that time. The presentinvention has been found to retain its distinctive characteristics through successive asexual propagations.


The following are the most outstanding and distinguishing characteristics of this new cultivar when grown under normal horticultural practices in Haarlem, The Netherlands. 1. Hot pink flower color; 2. Very compact habit; 3. Healthy foliage;and 4. Good mildew resistance.


This new phlox plant is illustrated by the accompanying photographs which show blooms and foliage of the plant in full color, the colors shown being as true as can be reasonably obtained by conventional photographic procedures. The photographsare of a 2 year-old plant grown in a greenhouse in Haarlem, The Netherlands.

FIG. 1 shows the overall plant habit, including blooms, buds and foliage.

FIG. 2 shows a mature flower.

FIG. 3 shows a mature leaf of the plant.


The following detailed description sets forth the distinctive characteristics of `Cosmopolitan`. The data which define these characteristics were collected from asexual reproductions carried out in Haarlem, The Netherlands. The plant historywas taken in August on 1 year old plants which were planted and grown outdoors in daytime temperatures between C. and C., and nighttime temperatures between C. and C. No pinchings, growth retardants orphotoperiodic treatments were used. Observations were made when the plants were in natural outdoor light. Color reference primarily to the R.H.S. Colour Chart of The Royal Horticultural Society of London (R.H.S.) (2001).


Classification: Family.--Polemoniaceae. Botanical.--Phlox paniculata. Common name.--Phlox. Parentage: Female parent.--Unknown. Male parent.--Unknown. Growth: Form.--Herbaceous perennial. Habit.--Upright, moderate to low vigor. Shape.--Broad inverted triangle. Height (measured from the top of the soil).--25.8 cm. Diameter.--22.1 cm. Growth rate.--8.0 cm per month. Time to produce a finished flowering plant.--25 weeks from rooted cutting for a 1.5 liter container. Hightemperature tolerance.--Tolerant to at least C. Lower temperature tolerance.--Hardy to USDA Zone 4. Roots.--White, thin, fibrous, sparse, freely branching. Branches: Habit.--Moderate; basal branching. Number of branches.--1 flowering stem. Stems: Description.--Round, glaborous, slightly glossy. Aspect.--Rounded. Color.--Between RHS 144A (Yellow-green) to RHS 144B (Yellow-green). Diameter.--0.3 cm. Stem length (excluding inflorescence).--15.2 cm. Internode length.--2.0 cm. Strength.--Strong. Pubescence.--Absent. Leaves: Arrangement.--Opposite, single. Quantity of leaves (per lateral branch).--14. Durability to stress.--High. Shape.--Elliptic. Apex.--Apiculate. Base.--Truncate to obtuse. Color (matureleaves).--Upper surface: RHS 137A (Green). Lower surface: RHS 138B (Green). Color (immature leaves).--Upper surface: RHS 143A (Green). Lower surface: Between RHS 143C (Green) to RHS 144A (Yellow-green). Margin.--Revolute, very short, fine serrate(approx. 30 teeth per cm). Size.--Length: 9.6 cm. Width: 3.9 cm. Texture (upper surface).--Smooth, glabrous. Pubescence.--Absent. Venation.--Type: Pinnate. Color: Upper surface: RHS 145A (Yellow-green). Lower surface: RHS 145C (Yellow-green). Petiole.--Shape: V-shaped. Length: 0.3 cm. Width: 0.5 cm. Height: 0.25 cm. Color (Both surfaces): Between RHS 145B (Yellow-green) to RHS 145C (Yellow-green). Flower Buds: Color.--RHS 75C (Purple); towards the tip between RHS 75A (Darker purple) toRHS 75B (Darker purple); lower half between RHS 146C to RHS 146D (Yellow-green); flushed with color between RHS 186B to RHS 186C (Greyed-purple). Shape.--Narrow obovate. Size.--Length: 2.2 cm. Diameter: 0.5 cm. Rate of opening.--Open approximately 4days. Inflorescence: Blooming habit.--Continuous during natural flowering season. Inflorescence type.--Self-cleaning, compound terminal panicle. Natural flowering season.--Summer to late summer (July to September). Height.--12.1 cm. Width.--12.2 cm. Fragrance.--Moderate, sweet; typical Phlox paniculata scent. Quantity of flowers per inflorescence.--100. Quantity of flower buds per lateral stem.--25. Quantity of flower buds per lateral stem.--75. Quantity of flower buds per plant.--100. Rate offlower opening.--Approximately 25% of the flowers at any stage. Flower longevity on plant.--10 days. Flower longevity as a cut flower.--10 days. Peduncle: Color.--Between RHS 144A (Yellow-green) to RHS 144B (Yellow-green). Length.--Primary: 8.7 cm. Secondary: 3.4 cm. Diameter.--Primary: 0.25 cm. Secondary: 0.15 cm. Angle.--Primary peduncles average angle is (straight upright), secondary peduncles average angle is Strength.--Strong. Pedicel: Color.--RHS 144B(Yellow-green). Length.--0.4 cm. Diameter.--0.1 cm. Angle.--Average angle ( to ( equals straight on top of the peduncle). Strength.--Strong. Florets: Type.--Single. Shape.--Salverform. Aspect.--Uprightand outward. Fragrance.--Moderate, sweet; typical Phlox paniculata scent. Size.--Height (flower depth): 2.7 cm. Diameter: 3.4 cm. Petals.--Arrangement: Rotate. Shape: Spathulate, the lower 60% fused into a tube. Appearance: Dull, smooth. Number:5. Size: Length: 3.5 cm (lower 2.2 cm fused into a tube). Width: 1.9 cm. Apex: Rounded. Margin: Entire. Color (when opening): Upper surface: RHS 73A (Red-purple); base of free part RHS N66A (Red-purple); tube RHS 64D (Red-purple). Lower surface:Between RHS N74C to RHS N74D (Red-purple); tube RHS 63C (Red-purple). Color (fully opened): Upper surface: Between RHS 73A to RHS N74B (Red-purple); base of free part between RHS N66A to RHS N74A. (Red-purple); tube RHS 64D (Red-purple). Lowersurface: Between RHS N74C to RHS N74D (Red-purple) tube RHS 63C (Red-purple). Color fading to: RHS N78C (Purple). Texture (both surfaces): Smooth. Calyx: Shape.--Campanulate. Length.--0.9 cm. Diameter.--0.4 cm. Sepals.--Arrangement: Rotate. Appearance: Smooth, dull. Number: 5. Shape: Linear. Apex: Narrow apiculate. Base: Lower 45% fused. Margin: Entire. Size: Length: 0.9 cm. Width: 0.2 cm. Color (mature): Upper surface: RHS 145A (Yellow-green); flushed with color between RHS 147A(Dark yellow-green) to RHS N200A (Brown). Lower surface: RHS 145A (Yellow-green); flushed with color between RHS 147A (Dark yellow-green) to RHS N200A (Brown). Color (immature): Upper surface: RHS 145A (Yellow-green); flushed with color between RHS147A (Dark yellow-green) to RHS N200A (Brown). Lower surface: RHS 145A (Yellow-green); flushed with color between RHS 147A (Dark yellow-green) to RHS N200A (Brown). Reproductive organs: Stamens.--Quantity: 5 Anther: Shape: Basifixed, oblong; filamentimplanted in petal. Length: 0.3 cm. Length of filament: 0.1 cm. Color: RHS 4D (Yellow). Pollen.--Amount: Moderate. Color: RHS 4C (Yellow). Pistil.--Quantity: 1. Length: 1.8 cm. Style.--Length: 1.7 cm. Color: RHS 146D (Yellow-green). Stigma.--Shape: Cleft (3-parted). Color: Between RHS 150C (Yellow-green) to RHS 150D (Yellow-green). Ovary color.--RHS 143A (Green). Fruit and Seed Set: No fruit or seeds have been detected to date. Disease and insect resistance: No particularresistance or susceptibility to diseases or insects noted to date.


`Cosmopolitan` differs from the commercial Phlox Paniculata variety `Bright Eyes` (unpatented), by having healthier foliage with thicker stems and a sturdier plant than `Bright Eyes`. Additionally, `Cosmopolitan` has more compact plant habitwith a warmer color than `Bright Eyes`.

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