Kahili ginger - Hedychium gardnerianum (Care, Characteristics, Flower, Images)

Kahili ginger

Also known as: Wild ginger lily, Salmon butterfly ginger

Kahili ginger (Hedychium gardnerianum) is an ornamental, tropical plant that will grow to 2.5 m tall when planted in the ground. Often referred to as ginger lily, it produces showy flower spikes that bloom in late summer or early fall. Clusters of bright yellow flowers appear at the end of the stalk with long, pinkish red stamens that extend from the flower to complete the stunning display. Orange fruits ripen in fall with red, sticky seeds that attract a variety of birds.

Scientific classification

Species

Kahili ginger (Hedychium gardnerianum)

Gingers, bananas, and allies

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Perennial, Annual

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

Fall, Mid winter, Late winter

Harvest Time

2.5 m

Plant Height

60 cm to 90 cm

Spread

Green, Gray, Silver

Leaf Color

15 cm

Flower Size

Orange

Fruit Color

Yellow, Red

Flower Color

Green, Gray, Silver, Red, White, Yellow

Stem Color

Deciduous

Leaf type

20 - 38 ℃

Ideal Temperature

Images of Kahili ginger

Distribution of Kahili ginger

Distribution Map

Kahili ginger originates from the subtropical regions of Asia but has since broadened its presence to both hemispheres. It is cultivated in various locales which enhances its ornamental appeal, yet in certain areas, its robust growth is sometimes thought to be assertive, where it may have an impact on local ecosystems. Its adaptability has led kahili ginger to be introduced across diverse major regions, and it is considered potentially disruptive in some temperate zones where its proliferation is notably vigorous.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Native bushland, rainforests, closed forests, forest margins, watercourses, riparian

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

Kahili ginger is a great choice as a border or hedge shrub, especially along pathways or garden walls. The plant is most attractive when its fragrant flowers bloom during the summer and fall. Because it can grow in sandy, sunny gardens, it works well in coastal gardens or informal cottage gardens. It can't handle frost but thrives in hot climates.

Interesting Facts

Despite its beauty, kahili ginger is a very invasive species - so invasive that it has been listed as one of "The World's 100 Worst Invasive Alien Species" by the IUCN Invasive Species Specialist Group. It is a weed of special concern in Hawaii, New Zealand, and the Azores, although it requires diligent control even in places where it is currently not considered noxious.

Name Story

Kahili ginger: Hedychium gardnerianum belongs to the family of gingers. 'Kahili' is a traditional Hawaiian decorative pole with plumes on the top, and a symbol of the chiefs and royal families of the Hawaiian Islands. The shape of the flower reminds of this important Hawaiian ornament, although it should be noted the plant doesn't originate from Hawaii at all.

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Quickly Identify Kahili ginger

Tall stems grow up to 8 feet (2.4 meters), towering above other plants.

Distinct powdery-white underside on 2-foot-long (60 cm) leaves sets it apart.

Fragrant yellow flowers with striking red stamens bloom in late summer.

6-inch-long (15 cm) tubular flowers sport pale yellow hue with red accents.

Three-part fruit capsule transitions from vivid green to mature brown in autumn.

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Care Guide for Kahili ginger

Every week

Water

Partial sun

Sunlight

20 - 38 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Originating from tropical regions, kahili ginger thrives in humid environments with a preference for consistent hydration. It flourishes when the soil remains evenly moist, requiring weekly watering. Dew and rainfall significantly support its hydration needs, especially for this evergreen plant grown outdoors.

Fertilize: For optimal growth and blooms of kahili ginger, use a high phosphorus fertilizer (10-20-10) monthly in the growing season, then quarterly as dormancy nears. Apply a tablespoon per plant at the base after watering to avoid root burn, adjusting rates for seasonal changes.

Pruning: To maintain kahili ginger's vibrant foliage and blooms, prune in early to late spring by removing dead stalks and spent flowers. This promotes healthy growth, vigorous flowering, and controls invasiveness. Use sanitized tools to prevent disease, ensuring improved airflow and light penetration for optimal plant health.

Propagation: Kahili ginger is propagated through careful division of rhizomes, ensuring each section has a growth bud. Replant in well-draining soil with buds just below the surface. Maintain consistent moisture, warmth, and indirect light for healthy root and shoot development.

Repotting: Re-pot kahili ginger every 2-3 years in spring, using a spacious container with good drainage. After re-potting, maintain consistent soil moisture and provide partial shade for recovery. These practices support healthy growth and enhance the vibrant flowers and foliage of kahili ginger.

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