Red Ginger

alpinia purpurata

Red Ginger (Alpinia purpurata) is a striking herbaceous perennial plant native to the South Pacific islands, including Samoa, Vanuatu, and New Caledonia. Highly prized for its showy, plume-like flower spikes, it has been widely introduced and naturalized across humid tropical regions globally. What appear to be vibrant red petals are actually brightly colored bracts, which cleverly shield the plant's small, inconspicuous white flowers. This versatile plant thrives in warm, humid conditions and is highly integrated into tropical landscaping and the cut-flower industry.

Habitat: Found in wet tropical forests, forest edges, and cultivated gardens, thriving in moist, well-draining soils with partial shade to full sun.

Appearance

Red Ginger stands tall, typically reaching heights of 100 to 450 centimeters, characterized by large, oblong, shiny green leaves that measure up to 80 centimeters long. The defining feature is its terminal spike, which boasts numerous overlapping, leathery bracts of a brilliant crimson or pink hue. Peeking out from under these showy bracts are small, tubular white flowers. When the flower spike ages, small plantlets (bulbils) can often be seen growing directly from the inflorescence.

KingdomPlantaePhylumTracheophytaClassLiliopsidaOrderZingiberalesFamilyZingiberaceaeGenusAlpinia

Photo: Kristof ZyskowskiCC BY 4.0 · iNaturalistView original ↗

Red Ginger

Interesting facts

It is the national flower of Samoa, where it is locally known as 'Teuila' and celebrated in annual cultural festivals.

Red Ginger can reproduce viviparously, meaning young clone plants sprout directly from the old flower stalks and take root once they fall to the ground.

The true flowers of the Red Ginger are actually tiny, white, and hidden inside the brilliant red structures, which are modified leaves called bracts.

Special abilities

The plant produces miniature plantlets directly within its old inflorescences, allowing them to drop to the ground and root as clones of the parent.

It possesses a robust root system capable of tolerating highly saturated soil conditions and short-term flooding.

Its brilliant red bracts act as long-distance visual signals to attract tropical pollinators to its tiny, hidden flowers.

Measurements & details

Length: 100-450 cm
Lifespan: 5-15 years

Diet & Feeding

As a photoautotrophic plant, Red Ginger synthesizes its own organic nutrients using sunlight, water, and carbon dioxide through photosynthesis.

Primary Foods

Sunlight
Water
Carbon Dioxide
Soil Nutrients

Ecological connections

Mutualism

Ruby-throated Hummingbird

Archilochus colubris

The Ruby-throated Hummingbird feeds on the nectar produced by the small white flowers hidden within the red bracts, acting as a key pollinator.

Parasite

Banana Aphid

Pentalonia nigronervosa

Banana Aphids feed on the sap of young leaves and shoots, sometimes spreading plant viruses.

Traits

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Also known as

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Safety

Danger

1/5 · Very low

No special safety notes yet.

Frequently Asked Questions

How to identify Red Ginger?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

How long is Red Ginger?

100-450 cm

How long does Red Ginger live?

5-15 years

What does Red Ginger eat?

As a photoautotrophic plant, Red Ginger synthesizes its own organic nutrients using sunlight, water, and carbon dioxide through photosynthesis.

Where is Red Ginger usually found?

Found in wet tropical forests, forest edges, and cultivated gardens, thriving in moist, well-draining soils with partial shade to full sun.