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Plant care

Red Stem Ginger Lily (Green's Ginger Lily) care

Hedychium greenii

Also called Green's Ginger Lily, Red Ginger Lily, Orange Butterfly Ginger.

RHS H3USDA 8-11Mildly toxic to petsIndoor 1.2-1.8 m tall

Watering rhythm

5-7days

When the top 2-3 cm of soil feels dry, roughly every 5-7 days in summer; every 14 days in winter

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Light

Bright indirect light (just back from a sunny window)

Soil

Rich, loamy, free-draining compost

Humidity

60-80%

Temp

15-32°C

Pet safety

Mildly toxic to pets

Mature size

1.2-1.8 m tall

Care at a glance

Light

Bright but filtered. Red Stem Ginger Lily burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Prefers bright indirect light with some protection from intense midday sun. A sheltered spot receiving filtered light or morning sun brings out the best flower colour and protects the decorative leaf undersides. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering red stem ginger lily: when the top 2-3 cm of soil feels dry, roughly every 5-7 days in summer; every 14 days in winter. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Requires generous, consistent moisture throughout the growing and flowering season. Ease off watering after the first frosts and keep rhizomes just barely moist during winter storage.

Soil and pot

Red Stem Ginger Lily grows best in rich, loamy, free-draining compost. A mix of loam-based compost (e.g. John Innes No. 3) with added leaf mould and 15% horticultural grit provides the fertility and drainage this vigorous species demands. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Red Stem Ginger Lily sits happiest at around 60-80% humidity and 15-32°C (59-90°F). High humidity suits this species well. Grow in a sheltered, humid microclimate outdoors or supplement humidity indoors with misting and pebble trays. Dry air causes leaf curl and brown tips. If you keep the room above 15 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed red stem ginger lily sparingly. Apply a high-potassium liquid feed every 2-3 weeks from spring through late summer to encourage strong flowering. Supplement with a slow-release balanced granular fertiliser at the start of the growing season. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on red stem ginger lily in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Rhizome rot — The main risk in cold, wet winters; lift rhizomes before hard frosts in USDA zones below 8 and store dry.
  • Aphids on new growth — Inspect emerging shoots regularly in spring; treat early with insecticidal soap to prevent colony establishment.
  • Faded flower colour — Occurs in very deep shade; move to brighter conditions to maximise the vibrant orange-red hue.
  • Sparse flowering — Insufficient pot size or nutrition; repot into a larger container and increase feeding during the growing season.
  • Frost damage — Stems are frost-tender; mulch heavily outdoors in borderline climates or move containers under cover before first frost.

Companion plants

Red Stem Ginger Lily pairs well with Canna 'Durban', Hedychium coccineum, Strelitzia reginae, and Phormium tenax. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Divide rhizomes in spring when new shoots first appear. Use a sharp, sterilised knife to cut the rhizome into sections each bearing 1-2 growth buds. Pot into rich compost and maintain warmth above 15°C until new leaves unfurl. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Red Stem Ginger Lily is mildly toxic to pets. Not individually listed by the ASPCA. Hedychium greenii belongs to the Zingiberaceae family, which is not flagged as severely toxic to pets, but consumption of plant material may cause mild gastrointestinal upset. Keep away from dogs and cats as a precaution. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Red Stem Ginger Lily care — frequently asked questions

What is the common name for Hedychium greenii?

Hedychium greenii is most commonly called Red Stem Ginger Lily, but it is also known as Green's Ginger Lily, Red Ginger Lily, Orange Butterfly Ginger. The names refer to the same species, so care instructions for Red Stem Ginger Lily apply identically to anything sold as Green's Ginger Lily.

How much light does red stem ginger lily need?

Red Stem Ginger Lily grows best in bright indirect light (just back from a sunny window). Prefers bright indirect light with some protection from intense midday sun. A sheltered spot receiving filtered light or morning sun brings out the best flower colour and protects the decorative leaf undersides.

How often should I water red stem ginger lily?

Water red stem ginger lily when the top 2-3 cm of soil feels dry, roughly every 5-7 days in summer; every 14 days in winter. Requires generous, consistent moisture throughout the growing and flowering season. Ease off watering after the first frosts and keep rhizomes just barely moist during winter storage. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is red stem ginger lily toxic to cats and dogs?

Red Stem Ginger Lily is mildly toxic to pets. Not individually listed by the ASPCA. Hedychium greenii belongs to the Zingiberaceae family, which is not flagged as severely toxic to pets, but consumption of plant material may cause mild gastrointestinal upset. Keep away from dogs and cats as a precaution.

What USDA hardiness zone does red stem ginger lily grow in?

Red Stem Ginger Lily is rated for USDA zone 8-11 and RHS hardiness H3. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Red Stem Ginger Lily deep-dive guides

Every aspect of red stem ginger lily care, each with its own calibrated guide:

Featured in these plant shortlists

Red Stem Ginger Lily qualifies for 2 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Red Stem Ginger Lily is also known as Green's Ginger Lily, Red Ginger Lily, and Orange Butterfly Ginger.