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HIBISCUS 'Sweet Caroline'

Image of Hibiscus 'Sweet Caroline' PP7608

Family

Malvaceae

Botanical Name

HIBISCUS 'Sweet Caroline' PP7608

Plant Common Name

Hybrid Hardy Hibiscus, Sweet Caroline Hibiscus

General Description

A hardy, shrubby hibiscus ‘Sweet Caroline’ has eye-catching leaves and bloom. Its flower buds resemble ruffled narrow roses and open to swirling ruffled pink petals. It flowers from midsummer to frost, and even longer if grown in a subtropical climate. The petals open very wide and curl downward, have touches of darker pink and red-pink, and encircle a red center. Individual flowers last one day, but several dozen can be open on one plant at a time. A semi-woody, typically deciduous perennial, ‘Sweet Caroline’ has green oval leaves that may have two stubbed lower lobes on each leaf blade. Frosts will end flowering and cause leaf drop, while hard freezes will kill the plant to the ground, to then rejuvenate the following spring once the soil warms.

Give ‘Sweet Caroline’ full to partial sun and rich to average soil for best growth and flowering. It is exceptionally cold hardy, tolerant of heat and moist soil and resistant to most insect pests. Like many herbaceous hibiscuses, it is a warm season plant that is slow to emerge in spring, so it is important to warm the soil around it by pulling back any mulch at its crown. Use 'Sweet Caroline' as a stunning accent in the mixed border, in a large container, or as an informal, airy hedge.

Characteristics

  • AHS Heat Zone

    12 - 4

  • USDA Hardiness Zone

    4 - 9

  • Sunset Zone

    H1, 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

    Shrub

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    4'-6' / 1.2m - 1.8m

  • Width

    2'-4' / 0.6m - 1.2m

  • Native To

    Hybrid Origin, Asia, Australia

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Pink, Rose

  • Fruit Color

    Green, Brown

  • Bark Color

    Sandy Brown, Gray

  • 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

    No

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Feature Plant, Foundation, Mixed Border, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No