Growli

Plant care

Orange Lily (Fire Lily) care

Lilium bulbiferum

Also called Orange Lily, Fire Lily, Bulbil-bearing Lily.

RHS H6USDA 4–8Toxic to petsIndoor 30–90 cm tall

Watering rhythm

Direct sun (at least 4-6 hours)

When top 2–3 cm of soil is dry

Light

Direct sun (at least 4-6 hours)

Soil

Well-drained loam, sandy or rocky soil

Humidity

40–60%

Temp

−10–25°C

Pet safety

Toxic to pets

Mature size

30–90 cm tall

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Thrives in full sun; a minimum of 6 hours of direct sunlight produces the brightest colour and sturdiest stems. In partial shade, flowering is sparse and stems etiolate. Ideal in open south- or west-facing borders. If your only bright window faces south, that's perfect for orange lily — same window any aroid would fry on.

Watering

Watering orange lily: when top 2–3 cm of soil is dry. 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. Water consistently during growth and bloom. This species tolerates drier conditions than many lilies once established — its native alpine habitat has dry summers. Ensure excellent drainage; soggy soil rots the scaly bulb rapidly.

Soil and pot

Orange Lily grows best in well-drained loam, sandy or rocky soil. Adapts to poor, stony, or sandy soils with good drainage — reflecting its mountain meadow origin. Prefers neutral to slightly alkaline pH (6.5–7.5). Does not require heavy feeding. Avoid heavy clay or permanently moist conditions. 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

Orange Lily sits happiest at around 40–60% humidity and −10–25°C (14–77°F). Tolerates relatively dry air as it naturally grows in open, exposed alpine meadows. Good airflow prevents fungal diseases. Not suited to humid, poorly ventilated spots. If you keep the room above −10–25°C 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 orange lily sparingly. Light feeding suits this species. Apply a low-nitrogen, high-potassium granular feed in early spring. Excessive fertilisation — especially nitrogen — produces tall, floppy stems and reduces flowering. A single top-dressing of composted bark in autumn is sufficient on poorer soils. 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 orange lily in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Lily beetleLilioceris lilii is the primary pest; adults and scarlet-cloaked larvae defoliate plants rapidly. Inspect undersides of leaves from April onwards and remove by hand; apply pyrethrum or thiacloprid for heavy infestations.
  • Powdery mildewOccurs in dry conditions with warm days and cool nights. A white mealy coating appears on foliage. Improve air circulation, avoid wetting foliage, and apply a sulfur-based fungicide at first signs.
  • Bulb rot in winterPoorly drained soils cause Pythium or Fusarium rot over winter. Lift bulbs in heavy-clay gardens after foliage dies back and overwinter in dry sand or vermiculite; replant in spring.

Propagation

Collect stem bulbils from leaf axils in late summer — they detach readily when ripe. Plant 3–5 cm deep immediately or store cool and dry until autumn. Bulb scaling in late summer produces bulbils within 8–10 weeks. Division of established clumps can be done in autumn. 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

Orange Lily is toxic to pets. All true Lilium species are severely toxic to cats (ASPCA confirmed). Any part of Lilium bulbiferum — leaf, petal, pollen, or stem — can cause acute kidney failure in cats, which is life-threatening without immediate veterinary care. Harmful to dogs in large amounts. Complete cat exclusion from the growing area is essential. 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.

Orange Lily care — frequently asked questions

What is the common name for Lilium bulbiferum?

Lilium bulbiferum is most commonly called Orange Lily, but it is also known as Orange Lily, Fire Lily, Bulbil-bearing Lily. The names refer to the same species, so care instructions for Orange Lily apply identically to anything sold as Fire Lily.

How much light does orange lily need?

Orange Lily grows best in direct sun (at least 4-6 hours). Thrives in full sun; a minimum of 6 hours of direct sunlight produces the brightest colour and sturdiest stems. In partial shade, flowering is sparse and stems etiolate. Ideal in open south- or west-facing borders.

How often should I water orange lily?

Water orange lily when top 2–3 cm of soil is dry. Water consistently during growth and bloom. This species tolerates drier conditions than many lilies once established — its native alpine habitat has dry summers. Ensure excellent drainage; soggy soil rots the scaly bulb rapidly. 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 orange lily toxic to cats and dogs?

Orange Lily is toxic to pets. All true Lilium species are severely toxic to cats (ASPCA confirmed). Any part of Lilium bulbiferum — leaf, petal, pollen, or stem — can cause acute kidney failure in cats, which is life-threatening without immediate veterinary care. Harmful to dogs in large amounts. Complete cat exclusion from the growing area is essential.

What USDA hardiness zone does orange lily grow in?

Orange Lily is rated for USDA zone 4–8 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Orange Lily deep-dive guides

Every aspect of orange lily care, each with its own calibrated guide:

Featured in these plant shortlists

Orange Lily qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Orange Lily is also known as Orange Lily, Fire Lily, and Bulbil-bearing Lily.