Plant Profile & Key Characteristics
Overview: A fast-growing evergreen rhizomatous ginger reaching about 0.5-1.4 m, forming clumps of upright leafy stems topped with showy bracts. Grown as a fragrant ornamental and long-lasting cut flower.
Quick Specifications
| Specification | Attribute |
|---|---|
| Plant Type / Life Cycle | Perennial |
| Foliage Type | Evergreen |
| Mature Size | 0.5-1.4 m (1.6-4.6 ft) tall |
| Growth Rate | Fast |
| Root System | Rhizomatous (spreading, can be aggressive) |
| Hardiness | USDA zone 11 and warmer |
Growth Form & Structure
- Height & Spread: Clumps of leafy stems 0.5-1.4 m tall spreading by rhizomes; can also be grown in large containers or as a houseplant.
- Growth Habit & Form: Clump-forming herbaceous ginger with upright, leafy pseudostems.
- Lifespan & Maturity: Long-lived perennial; fast to establish and can become aggressive.
Anatomy & Physical Features
- Leaves & Foliage: Green, linear leaves arranged along the upright stems.
- Flower Characteristics: Fragrant red or pink flowers in a cone- or hive-like head at the stem tips (summer).
Primary Uses & Landscape Value
- Functional & Ornamental Roles: Fragrant ornamental and cut flower for tropical and subtropical gardens, containers and as a houseplant.
Care Guide: Planting, Soil & Watering
Overview: Alpinia purpurata is a fast-growing, rhizomatous ginger that thrives in warm, frost-free, humid conditions and rich, constantly moist soil. It is a thirsty plant that appreciates plenty of water and shelter from cold.
Quick Care Requirements
| Requirement | Ideal Condition |
|---|---|
| Planting Season | Through the warm season, from spring to autumn |
| Growth Rate | Fast |
| Soil Type | Rich, fertile, organic and consistently moist, yet free-draining |
| Soil pH | Slightly acidic |
| Water Need | Moderate to High — keep the soil consistently moist, never letting it dry out |
Planting & Establishment
- Best Planting Season: Plant during the warm season, from spring through autumn, once the soil has warmed and there is no further risk of frost.
- How to Plant:
- Hole Preparation: Dig a generous hole, roughly twice the width of the rhizome or root ball, and work plenty of compost into the surrounding soil.
- Soil Amendments: Enrich the planting area with compost and other organic matter to build the rich, moisture-retentive soil this ginger needs, while keeping the ground free-draining so the rhizome does not rot.
- Planting Depth: Set rhizomes shallowly, just below the soil surface, and plant divisions at the depth they were previously growing.
- Growth Speed & Expectations: A fast grower in warm conditions that spreads vigorously by rhizome to form a clump, so give it plenty of room.
Soil, Watering & Drainage Care
- Soil Mix & Drainage Needs: Grow in rich, organic soil that holds moisture but still drains, as heavy, permanently waterlogged ground can rot the rhizome. In containers use a fertile, moisture-retentive potting mix with good drainage holes.
- Watering Schedule & Technique:
- Young / Newly Planted: Keep the soil evenly moist while the plant establishes, watering whenever the surface starts to dry.
- Established: Water generously and regularly so the soil stays consistently moist, especially in warm weather and while in active growth.
- Seasonal Adjustments: Reduce watering in cooler weather and over winter when growth slows, but never let the rootball dry out completely.
Climate, Light & Hardiness
Alpinia purpurata (red ginger) is a tropical to subtropical rhizome plant needing frost-free, humid, consistently moist conditions, and can also be grown indoors as a houseplant where winters are cold. It tolerates a wide range of light from almost full sun through full shade.
Quick Climate Specifications
| Climate Zones | Tropical, Mediterranean, Subtropical |
|---|---|
| USDA Hardiness Zones | 11+ |
| Frost Tolerance | Very Low |
| Light Conditions | Almost Full Sun to Full Shade |
Sunlight & Light Exposure
Optimal Light Setup
Unusually flexible on light, tolerating almost full sun down to full shade outdoors, and adapting to bright indoor light as a houseplant.
Temperature Extremes & Hardiness
USDA Hardiness & Regional Limits
Suited to outdoor growing in USDA zone 11 and warmer; outside that range it is best grown as a container houseplant that can be sheltered from cold.
Cold Damage & Winter Protection
Needs frost-free conditions at all times; where outdoor winters are not reliably frost-free, bringing potted plants indoors before cold weather arrives is the practical approach.
Frost Sensitivity
Very frost-sensitive with essentially no cold tolerance.
Wind, Humidity & Microclimate
Humidity Preferences
Needs consistently high humidity, reflecting its tropical rainforest-understory origins; dry indoor air can stress the plant when grown as a houseplant.
Rainfall & Seasonal Moisture
Prefers average to generous, steady moisture in a rich, slightly acidic soil rather than a climate with a pronounced dry season.
Growing in Pots, Balconies & Indoors
Red ginger (Alpinia purpurata) is a tropical ginger the grower rates as a genuine houseplant, and it grows well in containers. Its tolerance of shade makes it one of the easier gingers for indoor light, and a container keeps its aggressive spread in check while showing off its red bracts.
Quick Details
- Container Size: A roomy pot with depth for the rhizome; pot up as the clump expands
- Indoor Suitability: A good houseplant – shade-tolerant and forgiving of indoor light
- Best Spot: Half to full shade; bright, indirect light indoors
- Soil & Drainage: Rich, aerated potting mix that stays moist yet drains
- Watering in Pots: Average to generous – it likes steady moisture, never sodden
Indoors & On the Windowsill
- A real houseplant: The grower confirms it can be grown indoors; as a shade-loving ginger it accepts ordinary room light.
- Best light indoors: Bright, indirect light gives the fullest foliage; it tolerates lower light but grows more slowly.
- Care: Give it warmth and humidity, keep the mix moist in growth, and ease off in the cooler resting season.
On a Balcony or Patio
- Light & exposure: A sheltered, part-shaded balcony suits it; shield the broad leaves from strong wind and harsh midday sun.
- Practicalities: Big leaves lose water fast – check pots often in warm, reflected-heat spots and keep the mix evenly moist.
Choosing the Pot, Soil & Long-Term Care
- Pot & drainage: A roomy pot with depth for the rhizome; pot up as the clump expands – use a container with strong drainage holes; skip a standing-water saucer to avoid root rot.
- Pot material: Terracotta breathes and dries fast (good where you tend to overwater); glazed or plastic pots hold moisture longer.
- Potting mix: a light, aerated potting mix – peat or coir blended with perlite or vermiculite, plus some organic matter/compost.
- Feeding: Potted plants exhaust their feed faster because water washes nutrients out, so feed a little more often than plants in open ground during active growth.
- Repotting: Refresh the top of the mix each growing season and pot up or divide roughly every couple of years, trimming crowded roots.
- Keeping it in bounds: It spreads vigorously by rhizome, so a pot is a good way to contain it – divide when it fills the container.
Fertilizing & Feeding
A moderate feeder: this fragrant red-ginger cut-flower plant grows well with balanced feeding through its warm-season leafy growth and bloom, then rests without feeding whenever growth slows.
Quick Fertilizing Specs
| Feeding Level | Moderate feeder through the growing season |
|---|---|
| Main Nutrient Priority | Balanced feeding with adequate nitrogen for foliage and flower stems, without chasing bloom with extra phosphorus |
| Best Feeding Period | Spring through summer in warm, humid conditions |
| Organic Options | Compost or other organic matter worked into rich soil |
| Reduce/Stop Feeding | Ease off feeding during any cooler or lower-light rest period |
| Micronutrients | Usually met by a complete fertilizer; correct only a diagnosed deficiency |
| Soil pH | Prefers rich soil that is slightly acidic and consistently moist |
Feeding by Growth Stage
Active leafy growth
Build a full stand of foliage and strong stems ahead of flowering.
| Nutrient direction | A balanced, nitrogen-forward fertilizer supports vigorous new growth. |
|---|---|
| Timing | As new growth begins in warm weather, or year-round in consistently warm, humid climates. |
| Frequency | Light, regular feeding through the active growth period. |
| Fertilizer types | A balanced complete fertilizer, Compost or organic matter worked into rich soil |
| Precautions | Keep soil consistently moist and well aerated; this plant is a steady grower but does not tolerate soggy, airless soil well. |
Flowering period
Support the plant’s showy, long-lasting red flower spikes, prized for cutting.
| Nutrient direction | A balanced fertilizer with adequate nitrogen supports strong flower stems; extra phosphorus is not needed to force flowering. |
|---|---|
| Timing | As flower spikes form and through the bloom period. |
| Frequency | A light feeding is usually enough heading into and through bloom. |
| Fertilizer types | A balanced complete fertilizer |
| Precautions | Skip high-phosphorus ‘bloom booster’ products; consistent warmth, humidity, and balanced feeding drive the flower display. |
Cooler or lower-light rest
Let the plant rest through any cooler or lower-light slow period without pushing new growth.
| Nutrient direction | None – withhold fertilizer while growth is not active. |
|---|---|
| Timing | During any cooler weather, lower-light indoor winter, or extended slow-growth period. |
| Frequency | No feeding during this rest period. |
| Fertilizer types | No feeding at this stage; do not fertilize until active growth resumes. |
| Precautions | Do not fertilize while growth is stalled; feeding now wastes nutrients and risks salt buildup in the root zone. |
Nutrient Deficiency Signs & Corrections
Older leaves fade to pale green or yellow and stem and leaf production slows.
| Possible causes | low available soil nitrogen, nitrogen leaching from frequent watering in rich, moist soil, thin, low-organic-matter soil |
|---|---|
| Appears first on | older, lower leaves |
| What to check | recent feeding history, soil organic matter, watering frequency and drainage |
| Possible correction | Apply a nitrogen-containing balanced fertilizer during active growth and build soil organic matter. |
New leaves turn yellow while the veins remain distinctly green.
| Possible causes | high or alkaline soil pH tying up available iron, poorly drained or compacted soil limiting root uptake, naturally low soil iron |
|---|---|
| Appears first on | newest growth |
| What to check | soil pH, soil drainage, overall root health |
| Possible correction | Correct pH toward slightly acidic where testing warrants it and apply a chelated iron product per its label. |
Leaf margins brown or scorch despite regular watering.
| Possible causes | fertilizer salt buildup in the root zone, under-watering that concentrates salts, excessive or too-frequent feeding |
|---|---|
| Appears first on | leaf margins and tips |
| What to check | recent fertilizer amounts and frequency, watering consistency, soil or container drainage |
| Possible correction | Ease off feeding, water thoroughly to help flush accumulated salts, then return to lighter feeding. |
Pruning, Training & Seasonal Maintenance
Alpinia purpurata — the red ginger widely grown for cut flowers — has no woody structure; management centres on cutting flowering canes near the base once their long-lasting bract inflorescence is spent (or for harvest while it is fully coloured), which both crops the flower and renews the clump with fresh shoots. Left uncut, older inflorescences on this species often develop small vegetative plantlets (keiki) at the bract tips, which can be left to multiply the clump or removed for a tidier look.
Quick Pruning & Maintenance Specs
| Pruning Tolerance | High for cane removal — no permanent wood, cutting stimulates fresh growth |
| Primary Pruning Window | Whenever a cane’s inflorescence is ready to harvest or has finished its display |
| Secondary Maintenance Window | Autumn/winter general tidy-up |
| Typical Frequency | Ongoing, cane-by-cane, through the flowering season |
| Main Objective | Harvest/renew flowering canes; manage this species’ vigorous spread |
| Young Plant Priority | Let new divisions establish before any cutting |
| Mature Plant Priority | Regular cane renewal and clump-spread control |
| Best Tool Type | Precision snips or bypass secateurs for canes; a spade for rhizome division |
| Avoid Heavy Pruning During | Cutting canes that are still developing their inflorescence, unless harvesting for cut flowers |
Pruning by Plant Age & Size
Newly Established
Allow a new division to establish and put up its own canes before cutting begins.
Young / Formative
No structural training applies; remove only weak or damaged shoots so the young clump’s energy goes into strong canes.
Mature / Established
Cut individual flowering canes at the base once harvested or once their display fades, and periodically divide the clump to manage vigorous spread and maintain flower quality, since older, crowded clumps tend to produce smaller inflorescences.
Special Growth to Remove
Spent flowering canes should be cut to the base rather than left standing. Older inflorescences on this species can develop small vegetative plantlets at the bract tips; remove them if a tidy display is the goal, or leave and pot them up as free new divisions if propagation is wanted.
Container & Small-Space Pruning
This is a vigorous, spreading clumper; in containers, periodic rhizome division keeps growth in bounds and maintains flower size and quality far better than relying on top-growth pruning alone.
Tools
Precision snips or bypass secateurs for individual cane and spent-flower removal — all growth is fleshy, never woody. A garden spade handles the periodic rhizome division this spreading species needs.
Tool Hygiene & Disease Risk
Increased risk: documented fungal leaf-spot (Phyllosticta zingiberi) and rhizome fly pressure on this species. Disinfect blades after cutting any diseased tissue before moving to healthy canes.
Cut Placement & Technique
For cut-flower harvest, cut the cane low, near the rhizome, rather than partway up the stem — this is standard commercial practice for this species and encourages a clean new shoot rather than a stub with dying leaves.
Post-Pruning Care
No feeding is required specifically after cane cutting. Newly divided clumps benefit from consistent moisture while re-establishing.
Common Pruning Mistakes
Cutting canes partway up instead of at the base, leaving an unproductive stub; letting the clump become overcrowded for years, which reduces flower size; harvesting or cutting inflorescences too early, before the bracts have coloured.
When NOT to Prune
Avoid cutting canes with immature, still-developing inflorescences unless the goal is early harvest, and avoid dividing the clump during any unusually cool spell near this species’ zone 11+ cold limit.
Recommended Tools (by task)
- precision_snips — individual spent flowers and thin canes.
- bypass_secateurs — cutting thicker canes at the base, including for cut-flower harvest.
- garden_spade — periodic rhizome division to control this species’ vigorous spread.
- blade_disinfectant — given documented fungal leaf-spot and rhizome fly pressure.
Propagation Guide
Alpinia purpurata (Red Ginger) is propagated almost entirely by rhizome division for home growers, since it multiplies readily on its own; seed is listed as a possible route, but many cultivated plants flower without setting much viable seed, so division remains the dependable method. Propagation is easy.
Quick Propagation Specs
| Best Propagation Method | Rhizome (clump) division |
| Alternative Methods | Bract plantlets (where they form); seed |
| Propagation Difficulty | Easy |
| Seed True-to-Type | Usually true-to-type for the species; named color forms should not be relied on to come true from seed |
| Vegetative True-to-Type | Yes |
| Best Propagation Season | Spring, extending through summer and autumn |
| Seed Germination Time | Several weeks to a few months, often irregular |
| Germination Temperature | Warm, roughly 24–29°C (75–85°F) |
| Seed Sowing Depth | Shallow – just cover the seed |
Division, Offsets, Pups & Suckers
Divide rhizome clumps in spring as new growth begins, taking sections with at least one active growth eye; where possible keep some roots attached to speed establishment. Avoid replanting sections showing Phyllosticta zingiberi leaf-spot lesions or rhizome-fly damage. In humid conditions, small plantlets can occasionally form directly in the bracts of an ageing flower spike; these can be detached once they show their own roots and potted on as an opportunistic extra way to increase the plant, though clump division remains the primary method.
Growing from Seed
Germination Conditions
Where fertile seed is obtained, sow in warm, humid, constantly moist conditions; germination is typically slow and uneven.
Bloom & Flower Guide
Quick Details
- Bloom Season: Summer
- Flower Appearance: Showy red or pink cone- or hive-shaped heads at the stem tips – the colour comes from bracts, with the small true flowers tucked among them
- Edibility: Grown as an ornamental and long-lasting cut flower; not eaten
Detailed Blooming Overview
Red ginger’s dramatic torch is made mostly of bracts – the bold red or pink, cone- or hive-shaped head that lasts for weeks, while the small true flowers peek out from between them. It blooms in the summer heat and is a mainstay of tropical cut-flower arrangements.
Flower Characteristics
- Red or pink, hive-shaped flower heads at the stem tips; fragrant.
- Long-lasting, whether on the plant or cut.
Bloom Care & Thinning
- Cutting: Stems last well in a vase; cut when the head is well coloured.
- After bloom: Remove old flowering stems at the base to make room for new shoots.
Pests, Diseases & Troubleshooting
Overview: Alpinia gingers are lush, tender tropicals that stay largely trouble-free outdoors in warm humid climates, but under glass or indoors they attract spider mites, mealybugs and scale, and their fleshy rhizomes are vulnerable to soil-borne rots and nematodes. The real threats are below ground – bacterial wilt, rhizome and root rot in warm wet soil – so clean stock, good drainage and warmth without waterlogging are the foundation of healthy plants. Red ginger is a lush tropical grown for its bracts; spider mites and mealybug trouble it indoors, and bacterial wilt and rhizome rot are the key field risks in warm wet soil.
Quick Troubleshooting Overview
| Issue / Pest | Main Symptom | Primary Solution |
|---|---|---|
| Spider mites | Stippling, bronzing and webbing, worst in dry indoor air | Raise humidity, hose foliage; horticultural oil |
| Mealybugs & scale | White fluff or brown discs on stems, leaf sheaths, rhizomes | Alcohol/oil; inspect and clean rhizomes before planting |
| Root-knot nematode | Stunting, yellowing, galled and knotted roots/rhizomes | Clean stock, rotate soil; solarise, add organic matter |
| Bacterial wilt | Sudden wilt, yellowing, milky ooze from cut stem base | Rogue and destroy; never replant clumps or wet soil |
| Rhizome / soft rot | Soft, foul, water-soaked rhizome; plant collapses | Sharp drainage; clean seed pieces, avoid waterlogging |
| Cold damage / chlorosis | Blackened tips after chill; yellowing on wet or poor soil | Keep warm and drained; feed, correct iron |
Common Pests & Management
- Spider mites (Tetranychus urticae):
- Symptoms: Fine pale stippling and bronzing of the broad leaves with webbing on the undersides and along the midrib, worst on plants kept in hot, dry, still indoor or greenhouse air.
- Prevention & Control: Raise humidity, mist and hose the foliage (especially undersides), and keep plants unstressed. Treat outbreaks with horticultural oil or insecticidal soap, repeating to break the cycle, and use predatory mites under cover.
- Mealybugs (Pseudococcus / Planococcus spp.):
- Symptoms: White, cottony, waxy clusters tucked into leaf sheaths, stem bases and among the rhizomes, with honeydew and sooty mould; a root/rhizome form stunts potted plants.
- Prevention & Control: Wipe or dab clusters with alcohol and rinse the crown; inspect and clean rhizomes before planting. Use insecticidal soap, neem or horticultural oil for heavier infestations, and repot into fresh mix after washing the roots.
- Scale (Coccus / Aspidiotus spp.):
- Symptoms: Flat brown or greyish discs and bumps along stems, leaf sheaths and midribs; heavy colonies sap vigour, yellow the foliage and drip honeydew that blackens with sooty mould.
- Prevention & Control: Scrape off and wipe stems clean, and prune out badly encrusted canes. Smother crawlers with horticultural oil or insecticidal soap, repeating for successive generations, and conserve natural enemies outdoors.
- Root-knot nematode (Meloidogyne spp.):
- Symptoms: Above ground, unexplained stunting, yellowing, wilting in heat and poor vigour; below ground, swollen galls and knots on roots and rhizomes that cripple water and nutrient uptake and open the door to rots.
- Prevention & Control: Start with clean, nematode-free rhizomes and fresh or solarised soil, and rotate planting sites. Build soil organic matter and beneficial microbes, and discard heavily galled clumps rather than replanting infested stock.
- Chewing pests – beetles & caterpillars (leaf-rollers, Cnaphalocrocis and beetles):
- Symptoms: Ragged holes, notched margins and rolled or tied leaves from caterpillars and leaf-eating beetles, common on gingers in warm humid gardens; damage is usually cosmetic.
- Prevention & Control: Hand-pick caterpillars and beetles, unroll and remove leaf-rollers, and encourage birds and predatory insects. For heavier caterpillar pressure use a targeted Bacillus thuringiensis (Bt) spray, which spares beneficials.
Diseases & Fungal Issues
- Bacterial wilt (Ralstonia solanacearum):
- Symptoms: The most serious ginger disease – sudden wilting and yellowing of shoots that does not recover overnight, browning from the base up, and a milky bacterial ooze when a cut stem is stood in water; the rhizome rots and smells foul.
- Treatment & Management: There is no cure. Rogue out and destroy affected plants with the soil around them, never save or replant rhizomes from an infected clump, sterilise tools, and avoid working plants when wet. Use clean stock and fresh, well-drained, disease-free soil, and rotate away from the ginger and tomato families.
- Rhizome & soft rot (Pythium / Fusarium spp.):
- Symptoms: Yellowing and wilting of shoots, then a soft, water-soaked, foul-smelling rot of the rhizome (Pythium soft rot) or a slower, drier yellows-and-decline with rotting rhizomes (Fusarium); both thrive in warm, wet, poorly drained soil.
- Treatment & Management: Prevention is everything: plant clean, undamaged rhizomes in raised, sharply drained beds or gritty container mix, avoid waterlogging, and do not injure the rhizomes. Remove and destroy rotting clumps and improve drainage before replanting elsewhere.
- Leaf spot (Phyllosticta / Colletotrichum spp.):
- Symptoms: Small brown, tan or grey spots, sometimes with yellow halos or water-soaked margins, coalescing into blotches on the leaves in prolonged warm, wet, humid weather.
- Treatment & Management: Improve air movement and spacing, water at the base to keep foliage dry, and clear fallen affected leaves. Copper fungicide helps where spotting spreads in a persistently wet season; it is otherwise mostly cosmetic.
- Fusarium yellows (Fusarium oxysporum):
- Symptoms: Progressive yellowing, stunting and wilting of shoots with dry, discoloured internal rhizome tissue; slower than bacterial wilt but similarly persistent in the soil.
- Treatment & Management: Use clean stock and fresh soil, ensure sharp drainage, and rotate. Remove and destroy affected clumps; the fungus persists in soil, so do not replant gingers into a known-infected bed.
Growing Difficulties & Abiotic Problems
- Cold & frost damage:
- Cause & Symptoms: These are warm-tropical plants; chill blackens and collapses the foliage and hard frost cuts the top growth to the ground, while cold wet soil rots the rhizomes.
- Correction Strategy: Grow in warmth and shelter, mulch the rhizomes heavily in marginal areas, and lift or protect containers over winter. Keep the soil on the dry side in cold weather; established rhizomes often reshoot from below once warmth returns.
- Chlorosis (yellowing leaves):
- Cause & Symptoms: Pale or yellow leaves with green veins from iron shortage on alkaline or waterlogged soil, or overall yellowing from cold wet roots or nutrient shortage in a tired mix.
- Correction Strategy: Improve drainage, feed with a balanced fertiliser through the growing season, and apply chelated iron and organic matter or acidify slightly on alkaline soils. Correct watering usually greens the plant back up.
- Leaf-tip & margin scorch:
- Cause & Symptoms: Brown, crisped leaf tips and edges from dry air, drought, salt build-up in containers, or hot dry wind – gingers want steady moisture and humidity.
- Correction Strategy: Keep humidity and even soil moisture up, shelter from drying wind, and flush containers periodically to leach salts. Mulch outdoor plants to hold moisture around the roots.
- Sun scorch / too much light:
- Cause & Symptoms: Bleached, scorched patches and faded, crisped leaves on plants in fierce full sun, especially the variegated forms and those grown in low light then moved out.
- Correction Strategy: Give bright light with shade from the harshest midday sun, and acclimatise gradually when moving plants. Filtered light or morning sun keeps the foliage lush and unmarked.
What Helps – Products & Tools
For Alpinia gingers the priorities are clean rhizomes and sharp drainage. Useful items are horticultural oil and insecticidal soap for spider mites, mealybug and scale; Bt for caterpillars; copper fungicide for leaf spot in wet spells; and chelated iron plus balanced feed for chlorosis. There is no spray cure for bacterial wilt, Fusarium or rhizome rot – the defences are disease-free stock, raised well-drained beds and rotation. The source’s “Phyllosticta zingiberi, rhizome flies” points only at leaf spot and soil pests; the graver risks are the below-ground wilts and rots above.
Frequently Asked Questions
How do you care for Alpinia purpurata (red ginger)?
Alpinia purpurata thrives in warm, frost-free, humid conditions and rich, constantly moist soil. It needs moderate to high water — keep the soil consistently moist and never let it dry out — in slightly acidic, fertile, free-draining soil. It tolerates almost full sun down to full shade outdoors, but is very frost-sensitive with essentially no cold tolerance and is suited to outdoor growing in USDA zone 11 and warmer.
What is Alpinia purpurata used for?
It is grown as a fragrant ornamental and long-lasting cut flower for tropical and subtropical gardens, containers and as a houseplant, valued for its scarlet or pink flower bracts.
What is red ginger (Alpinia purpurata)?
Red ginger is famed for its long-lasting scarlet or pink flower bracts on tall stems, a tropical florist’s staple grown as a fragrant ornamental. It is a fast-growing evergreen rhizomatous ginger reaching about 0.5-1.4 m, forming clumps of upright leafy stems topped with showy bracts.
What does the red ginger flower look like, and when does it bloom?
Red ginger’s dramatic torch is made mostly of bracts – the bold red or pink, cone- or hive-shaped head that lasts for weeks, while the small true flowers peek out from between them. It blooms in the summer heat and is a mainstay of tropical cut-flower arrangements.
What kind of root system does red ginger have, and how should it be planted?
Red ginger has a rhizomatous root system that spreads and can be aggressive, so give it plenty of room. Set rhizomes shallowly, just below the soil surface, and propagate by dividing rhizome clumps in spring as new growth begins, taking sections with at least one active growth eye.
