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DENDROCHILUM magnum

Image of Dendrochilum magnum

Family

Orchidaceae

Botanical Name

DENDROCHILUM magnum

Plant Common Name

Dendrochilum Orchid, Golden Chain Dendrochilum

General Description

Dendrochilum magnum is a frost-tender evergreen orchid grown for its showy chain-like clusters of greenish-yellow flowers. It is native to humid upland forests in the Philippines, where it dwells on tree limbs and rock ledges.

The large, lance-shaped leaves of this epiphytic orchid are borne on clusters of conical to pear-shaped "pseudobulbs." Arching flower stalks arise in late summer and fall, each ending in a long, drooping, catkin-like spike of lightly fragrant, greenish-yellow flowers. Bloom may recur in spring. Individual pseudobulbs produce only one leaf and one inflorescence at a time.

This high-altitude tropical orchid needs bright indirect light ("high shade"), mild summers, and frost-free winters. Grow it in a coarse bark mix in a pot, or fix it to a a wood slab or tree branch. Water freely from spring to fall, and somewhat less in winter. Good air circulation and high humidity are essential. Deep green leaves are an indication that light levels are too low.

Use this evergreen orchid in the garden where hardy, or in a warm shaded greenhouse or conservatory. Place potted specimens on a pebble-filled water tray to boost humidity. Divide potbound plants in spring, if necessary. This orchid resents root disturbance.

Characteristics

  • AHS Heat Zone

    10 - 5

  • USDA Hardiness Zone

    11 - 13

  • Plant Type

    Epiphyte

  • Sun Exposure

    Partial Sun, Partial Shade

  • Height

    16"-26" / 40.6cm - 66.0cm

  • Width

    1'-2' / 0.3m - 0.6m

  • Bloom Time

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

    Lemon Yellow, Yellow Green

  • 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

    Yes

  • 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