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Gardenia jasminoides 'Crown Jewel'

Image of Gardenia jasminoides 'Crown Jewel'

PlantHaven

Family

Rubiaceae

Botanical Name

Gardenia jasminoides 'Crown Jewel'

Plant Common Name

Cape-jessamine, Gardenia

General Description

Best known for its lush foliage, rounded habit and wonderfully fragrant flowers, common gardenia is a superb, cold-tender evergreen shrub native to East Asia. The cultivar 'Crown Jewel' combines the compact habit and double flowers of 'Chuck Hayes' with the cold-hardiness and prolific bloom of 'Kleim's Hardy.' The waxy, double, ivory-white flowers appear in abundance from late spring to early summer and repeat in lesser numbers into fall. Smaller than those of most gardenias, the glossy, dark-green, evergreen leaves are borne on dense spreading branches. The colorful red and yellow bases (calyces) of the flowers often remain long after the petals have dropped, providing fall and winter interest.

Acidic, evenly moist soils with good drainage are crucial for plant health and successful blooming. Plants also like humidity. Common gardenia grows best in full to partial sun and needs good air circulation to discourage foliar diseases. Whether used as a specimen or in a mixed shrub border, this is a beautiful and rewarding landscape ornamental. Where not cold hardy it may be container grown and overwintered in sunny indoor locations.

Characteristics

  • AHS Heat Zone

    12 - 8

  • USDA Hardiness Zone

    8 - 10

  • Sunset Zone

    H1, H2, 7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Broadleaf Evergreen

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    2'-3' / 0.6m - 0.9m

  • Width

    2'-3' / 0.6m - 0.9m

  • Bloom Time

    Late Spring, Early Summer, Summer, Late Summer, Early Fall, Fall

  • Native To

    Eastern Asia

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Oval/Rounded

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Ivory

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Winter)

    Dark Green

  • Bark Color

    Chocolate, Gray

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Double

  • 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

    Container, Cutflower, Feature Plant, Foundation, Hedges, Houseplant, Mixed Border, Topiary / Bonsai / Espalier

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No