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COELOGYNE rochusseni

Image of Coelogyne rochusseni

Michael Charters, www.calflora.net

Family

Orchidaceae

Botanical Name

COELOGYNE rochusseni

Plant Common Name

Coelogyne, Orchid

General Description

An epiphytic (tree-dwelling) orchid from hot moist lowland forests of Southeast Asia, Coelogyne rochusseni is grown for its handsome evergreen foliage and for its long draping clusters of fragrant, pale lemon-yellow blooms.

This frost-tender orchid forms clumps of banana-shaped, yellow-green, conspicuously ribbed pseudobulbs. Two pleated, lance-shaped, bright-green leaves arise from the apex of each pseudobulb. New leaves and pseudobulbs develop in spring. Clusters of 20 to 40 buff-yellow blooms are borne on long dangling stems that sprout from the bases of old pseudobulbs in winter. Each blossom has five lance-shaped "petals" and a central creamy-white lip. The lip is marked with several yellow ridges and two brown bands.

This orchid requires hot moist summers, warm winters, high humidity, and bright indirect or filtered light. Give it a porous, soilless growing medium such as a coarse bark mix. Water freely from mid-spring to fall, fertilizing periodically with a dilute solution. Water sparingly in winter. Provide good ventilation and protection from cold drafts.

Grow this epiphyte in a hanging basket in a tropical greenhouse or conservatory. In tropical climes plant it outdoors on a tree limb or ledge.

Characteristics

  • AHS Heat Zone

    12 - 10

  • USDA Hardiness Zone

    13 - 15

  • Sunset Zone

    H2

  • Plant Type

    Epiphyte

  • Sun Exposure

    Partial Shade

  • Height

    20"-24" / 50.8cm - 61.0cm

  • Width

    24"-30" / 61.0cm - 76.2cm

  • Bloom Time

    Early Winter, Winter, Late Winter

  • Native To

    Southeastern Asia

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Growth Rate

    Slow

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Light Yellow, Yellow Green, Light Green, Tan, Brown, Sienna, Ivory

  • Flower Color Modifier

    Multi-Color

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Green

  • Foliage Color (Fall)

    Green

  • Foliage Color (Winter)

    Green

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Hanging Basket, Houseplant, Rock Garden / Wall, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No