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Etlingera elatior

Torch ginger

Zingiberaceae

Java, Sumatra, and Peninsular Malaysia

Attracts Pollinators Attracts Butterflies Fragrant (moderate)Container Friendly

SunFull Sun – Part Shade

WaterHigh

HardinessZones 10–12

Overview

Etlingera elatior is a clumping rhizomatous perennial with leafy canes 13-20 feet (4-6 m) tall forming a clump 6-12 feet (1.8-3.7 m) across. Leaves are oblong-lanceolate, 12-34 inches (30-85 cm) long, set in two ranks along each cane, deep green above and sometimes bronze-flushed beneath. Inflorescences rise on separate leafless stalks 20-60 inches (50-150 cm) tall that emerge directly from the rhizome at ground level, well away from the leafy canes. Each is a cone 4-10 inches (10-25 cm) across built from thick waxy bracts, most often pink-red though white, pale pink, and orange forms are grown. The true flowers are small, red with yellow margins, and open a few at a time from between those bracts. Fruit is a rounded head of green to red capsules holding many black seeds. The clump spreads steadily by rhizome and reaches 12 feet (3.7 m) across within 5-6 years, so it outgrows small beds and needs a barrier or regular division. It requires continuous moisture and warmth: growth halts below 55F (13C) and foliage is destroyed by frost. Unopened flower buds are harvested as the souring vegetable used in Malaysian and Indonesian cooking.

Native Range

Etlingera elatior is native to Java, Sumatra, and Peninsular Malaysia, where it grows on rainforest margins, along streams, and in secondary forest below 4,000 feet (1,200 m). It has been carried widely through the humid tropics as a cut flower and vegetable crop and is naturalized in parts of Central America, the Caribbean, Hawaii, and tropical Africa. Rainfall across its native range is 80-160 inches (2,000-4,000 mm) a year.

Suggested Uses

Grown as a screening and background plant in tropical gardens at spacings of 8-10 feet (2.4-3 m), and as a cut-flower crop with stems harvested at 3-5 feet (0.9-1.5 m). Unopened buds are sliced into Malaysian laksa and Indonesian sambal, and shoots and young leaves are also cooked. Planted along stream banks and pond margins where the rhizome mass binds saturated soil.

How to Identify

Flowering stalks arise from the ground on their own, separate from the leafy canes, which sets Etlingera elatior apart from Alpinia spp. and Hedychium spp. species that flower at the cane tips. The head is a tight cone of thick, waxy, outward-curving bracts 4-10 inches (10-25 cm) across with a glossy surface and blunt tips. Leaf blades are 12-34 inches (30-85 cm) long, hairless, and arranged in two ranks. Crushed rhizome and leaf bases give off a sharp ginger scent.

Appearance

Size & Dimensions

Height13' - 20'

Width/Spread6' - 12'

Reaches mature size in approximately 3 years

Colors

Flower Colors

red

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~52 weeks

Spring Summer Fall Winter

Flowering runs year-round in equatorial climates and concentrates in the warm wet months where a dry season occurs. A single head holds its bract colour for 2-3 weeks on the plant and 7-10 days as a cut stem, and an established clump carries 5-15 stalks at a time. True flowers open in successive rings from the base of the cone upward across roughly 2 weeks. Clumps begin flowering 2-3 years after planting.

Detailed Descriptions

Flower Description

Waxy pink-red bracts with small red and yellow true flowers

Foliage Description

Deep green, sometimes bronze-flushed beneath

Growing Conditions

Sun Requirements

SunFull Sun SunPartial Shade

Requires 4-8 hours of direct sunlight daily

• Full Sun: 6+ hours of direct sunlight

• Partial Shade: 3-6 hours of direct sunlight

• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range5.5 - 7.0(Neutral)

357912

Soil Types

loam silt clay

Drainagemoist

Water & Climate

Water Needs

High

Frost Tolerance

tender

Time to Maturity

2-3 years to first flowering

Care & Maintenance

Care Guide

Etlingera elatior grows in full sun to half shade with 4-8 hours of direct light, in deep humus-rich loam at pH 5.5-7.0 held constantly moist. Water demand is heavy at 80-160 inches (2,000-4,000 mm) of annual rainfall or the irrigation equivalent, with no dry spell longer than 2-3 weeks. Feeding is correspondingly heavy, using a balanced fertilizer at 4-8 ounces (115-225 g) per clump every 8-10 weeks through the growing season. Temperatures below 55F (13C) halt growth and any frost kills top growth to the ground, restricting it to USDA zones 10-12, with rhizomes surviving brief cold only under deep mulch in zone 10. Wind shreds the large leaf blades, so plantings are set behind shelter. Container culture calls for pots of 25 gallons (95 L) or larger and daily watering in warm weather.

Pruning

Canes are cut to ground level once they yellow, generally 18-24 months after emergence, leaving 4-6 canes per square yard standing. Spent flowering stalks are cut at the base as the bracts brown. Clumps are divided every 4-5 years in early spring, lifting rhizome sections carrying 2-3 shoots each. Cutting the leafy canes does not raise flower output, since the flower stalks arise separately from the rhizome.

Pruning Schedule

early spring