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CRYPTOMERIA japonica 'Gyokuryu'

Image of Cryptomeria japonica 'Gyokuryu'

James H. Schutte

Family

Cupressaceae

Botanical Name

CRYPTOMERIA japonica 'Gyokuryu'

Plant Common Name

Black Dragon Cryptomeria, Japanese Cryptomeria

General Description

Gyokuryu Japanese cedar is a densely compact evergreen small tree with a broad, pyramidal shape. Over time it will eventually form a central lead branch at its top. Needles are dark green and similar to 'Black Dragon'. Bark is reddish-brown and exfoliating.

Gyokuryu Japanese cedar tolerates most well drained soils but excels in those that are moist and acidic, rich in humus. A full sun or partial shade location is preferred. It also may be a successful alternative for informal hedge replacements of Leyland cypress that succumbed to canker infestations in the American South.

Characteristics

  • AHS Heat Zone

    9 - 4

  • USDA Hardiness Zone

    6 - 9

  • Sunset Zone

    4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Shrub

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    7'-10' / 2.1m - 3.0m

  • Width

    4'-6' / 1.2m - 1.8m

  • Native To

    Japan

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam

  • Tolerances

    Salt

  • Growth Rate

    Slow

  • Water Requirements

    Average Water

  • Habit

    Upright/Erect

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Insignificant

  • Fruit Color

    Brown

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Winter)

    Dark Green

  • Bark Color

    Sienna

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    Yes

  • Bark or Stem Fragrant

    No

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Fine

  • Foliage Sheen

    Glossy

  • Evergreen

    Yes

  • Showy Bark

    Yes

Special Characteristics

  • Bark Texture

    Exfoliating

  • Usage

    Feature Plant, Rock Garden / Wall, Screening / Wind Break, Topiary / Bonsai / Espalier

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No