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CATHARANTHUS roseus 'Cooler Rose'

Image of Catharanthus roseus 'Cooler Rose' (COOLER SERIES)

Jessie Keith

Family

Apocynaceae

Botanical Name

CATHARANTHUS roseus 'Cooler Rose'( COOLER SERIES)

Plant Common Name

Cooler Rose Vinca, Madagascar Periwinkle, Vinca

General Description

Deep rose flowers with white centers adorn this tough, attractive bedding annual all season long. Madagascar periwinkles in the Cooler Series are compact, have large, rounded flowers with overlapping petals and are more tolerant of cooler temperatures than most. Their bright flowers come in an array of vibrant colors such as white, lavender, red and magenta-purple. These bloom continuously as long as growing conditions are favorable.

Vinca, or Madagascar periwinkle, is a bushy tender perennial shrub that delights with many colorful, radial flowers that appear all season long. As its common name suggests, it’s native to Madagascar, a tropical island off the southeastern coast of Africa. Not surprisingly, this popular bedding plant is both heat and drought tolerant, so it will continue to look glorious even when the weather isn’t. In the wildlands of Madagascar it favors sandy or limestone soils and dry, open woodlands or grasslands.

Small, elongated to elliptical evergreen leaves of dark green cover this low-growing bushy shrub. The lustrous leaves have lighter central veins and smooth edges. Blooms appear continuously as long as weather is favorable. The showy, radial, five-petaled blooms are rose-red, pink or white in the wild but varieties with novel flower colors have been cultivated over the years. Red, lavender, orange and burgundy flowered varieties exist and many have or white or red blotch in the center, called an eye. Butterflies are attracted to the flowers, so expect visits from these fine, fluttery creatures.

Full to partial sun is needed for best growth and flowering. Madagascar periwinkle will thrive in poor soils and marginal areas but also grows well in fertile, well-drained garden loam. Poorly-drained, heavy soils should be avoided at all costs as they typically cause root rot. Deadheading is not required for rebloom. Plants are known to self-sow and become invasive in tropical and subtropical areas. Exceptional salt and wind tolerance makes this a good choice for Ocean or seaside gardens.

Plant this tough ornamental in sunny beds and borders or containers. In tropical regions, where it will become a mounded, semi-woody shrub, it can be planted in mixed borders or as a foundation plant.

Characteristics

  • AHS Heat Zone

    12 - 1

  • USDA Hardiness Zone

    9 - 15

  • Sunset Zone

    A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tender Perennial

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    10"-14" / 25.4cm - 35.6cm

  • Width

    6"-10" / 15.2cm - 25.4cm

  • Bloom Time

    Indeterminate

  • Native To

    Hybrid Origin, Madagascar

Growing Conditions

  • Soil pH

    Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Pollution, Drought, Salt

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Oval/Rounded

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Rose

  • Flower Color Modifier

    Bicolor

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Winter)

    Dark Green

  • Bark Color

    Tan, Sandy Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Bedding Plant, Container, Hanging Basket, Mixed Border, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Butterflies

  • Self-Sowing

    Yes