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GALTONIA viridiflora

Image of Galtonia viridiflora

Family

Liliaceae

Botanical Name

GALTONIA viridiflora

Plant Common Name

Green Cape Hyacinth, Green-flowered Summer Hyacinth

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Particularly loved because of its midsummer floral display on arching stems, green cape hyacinth bears flower spikes of drooping tubular pale green flowers with a faint fragrance. A dormant to semi-evergreen herbaceous perennial from Lesotho and South Africa, it grows from bulbs.

The fleshy, medium to gray-green leaves are broad and lance-shaped. In midsummer or late summer, depending on mildness of climate, leafless stalks rise, arch and bear light green flower buds that open to pendent light green flowers. Opening on the bottom of the compact spiked cluster first, each flower is faintly fragrant.

Grow green cape hyacinth in full to partial sun in a fertile, well-draining soil that is moist in spring and summer, drier in winter. In frost free areas the bulbs can create impressive plant clumps with impressive floral displays. In areas with frosts but mild winters the plants are deciduous and should be kept drier and mulched heavily; bulbs that must regrow foliage in spring flower later in summer, if not early autumn. In cold regions lift the bulbs in autumn and overwinter them indoors in shredded newspaper (like gladioulus) or grow in movable patio containers. This tender perennial is beautiful in accent clumps in a mixed border, adding a refreshing look to midsummer gardens alongside gladiola and bellflower.

Characteristics

  • AHS Heat Zone

    10 - 7

  • USDA Hardiness Zone

    7 - 10

  • Sunset Zone

    H1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Bulb or Corm or Tuber

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    2'-3' / 0.6m - 0.9m

  • Width

    11"-14" / 27.9cm - 35.6cm

  • Bloom Time

    Summer, Late Summer

  • Native To

    Southern Africa, South Africa

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Light Green

  • Foliage Color (Spring)

    Light Green, Gray Green

  • Foliage Color (Summer)

    Light Green, Gray Green

  • Foliage Color (Fall)

    Gray Green

  • Foliage Color (Winter)

    Gray 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

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Feature Plant, Mixed Border, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No