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Plant care

Lilium lancifolium (tiger lily) care

Lilium lancifolium

Also called tiger lily, devil lily, kentan.

RHS H6USDA 3-9Toxic to petsIndoor 0.9-1.5 m tall

Watering rhythm

Direct sun (at least 4-6 hours)

Keep evenly moist in active growth, roughly weekly; never waterlogged

Light

Direct sun (at least 4-6 hours)

Soil

Deep, fertile, free-draining loam, slightly acidic to neutral

Humidity

40-70%

Temp

15-25°C

Pet safety

Toxic to pets

Mature size

0.9-1.5 m tall

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Full sun to light afternoon shade; aim for 6+ hours of direct sun for sturdy stems and heavy flowering, though the roots prefer to stay cool and shaded. If your only bright window faces south, that's perfect for lilium lancifolium — same window any aroid would fry on.

Watering

Watering lilium lancifolium: keep evenly moist in active growth, roughly weekly; never waterlogged. 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 deeply during spring and summer growth, letting the top few centimetres dry between drinks. Reduce sharply after the foliage yellows in autumn so dormant bulbs do not rot in wet soil.

Soil and pot

Lilium lancifolium grows best in deep, fertile, free-draining loam, slightly acidic to neutral. Wants rich soil that drains freely; work in leaf-mould or grit on heavy clay. Plant bulbs 15-20 cm deep, which keeps the roots cool while the stem reaches sun. Mulch to conserve moisture and protect from heat. 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

Lilium lancifolium sits happiest at around 40-70% humidity and 15-25°C (59-77°F). An outdoor hardy bulb indifferent to ambient humidity; open air movement matters more, as still, damp conditions invite botrytis on the foliage and buds. 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 lilium lancifolium sparingly. Feed with a balanced or high-potash fertiliser as shoots emerge in spring, then a second feed as buds form. A tomato-style high-potash feed improves flower quality. Stop feeding once flowering ends to let bulbs harden for dormancy. 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 lilium lancifolium in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Lily beetleScarlet lily beetles and their slimy larvae strip foliage fast; inspect stems from spring and remove adults and grubs by hand before they defoliate the plant.
  • Botrytis (lily disease)Brown, water-soaked blotches on leaves and buds in wet weather. Improve airflow, avoid overhead watering, and remove affected foliage to slow the spread.
  • Bulb rot in wet soilPoorly drained or waterlogged ground rots the scaly bulbs over winter. Plant on grit, raise beds, and cut back watering after the foliage dies down.
  • Lily virusTiger lily can carry and spread mosaic-type viruses (streaked, mottled foliage) to other lilies while showing few symptoms itself; rogue out visibly infected plants and control aphid vectors.

Propagation

Easiest from the dark bulbils that form in the leaf axils — collect and sow shallowly in autumn. Also by separating offset bulbs or by scaling (detaching outer bulb scales to grow bulblets). Seed is possible but slow. 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

Lilium lancifolium is toxic to pets. ASPCA lists tiger lily (Lilium) as toxic to cats — cats are the only species known to be affected, but exposure is severe: even small amounts of petal, leaf, pollen or vase water can cause vomiting, inappetence, lethargy, acute kidney failure and death. Treat as a veterinary emergency for cats; ASPCA classifies it non-toxic to dogs and horses, though ingestion may still cause GI upset. 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.

Lilium lancifolium care — frequently asked questions

What is the common name for Lilium lancifolium?

Lilium lancifolium is most commonly called Lilium lancifolium, but it is also known as tiger lily, devil lily, kentan. The names refer to the same species, so care instructions for Lilium lancifolium apply identically to anything sold as tiger lily.

How much light does lilium lancifolium need?

Lilium lancifolium grows best in direct sun (at least 4-6 hours). Full sun to light afternoon shade; aim for 6+ hours of direct sun for sturdy stems and heavy flowering, though the roots prefer to stay cool and shaded.

How often should I water lilium lancifolium?

Water lilium lancifolium keep evenly moist in active growth, roughly weekly; never waterlogged. Water deeply during spring and summer growth, letting the top few centimetres dry between drinks. Reduce sharply after the foliage yellows in autumn so dormant bulbs do not rot in wet soil. 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 lilium lancifolium toxic to cats and dogs?

Lilium lancifolium is toxic to pets. ASPCA lists tiger lily (Lilium) as toxic to cats — cats are the only species known to be affected, but exposure is severe: even small amounts of petal, leaf, pollen or vase water can cause vomiting, inappetence, lethargy, acute kidney failure and death. Treat as a veterinary emergency for cats; ASPCA classifies it non-toxic to dogs and horses, though ingestion may still cause GI upset.

What USDA hardiness zone does lilium lancifolium grow in?

Lilium lancifolium is rated for USDA zone 3-9 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Lilium lancifolium deep-dive guides

Every aspect of lilium lancifolium care, each with its own calibrated guide:

Featured in these plant shortlists

Lilium lancifolium 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

Lilium lancifolium is also known as tiger lily, devil lily, and kentan.