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Plant care

White Towers Toad Lily (white hairy toad lily) care

Tricyrtis hirta 'White Towers'

Also called White Towers toad lily, white hairy toad lily.

RHS H6USDA 4-9Mildly toxic to petsIndoor 60-80 cm (24-32 in) tall and 45-60 cm (18-24 in) wide

Watering rhythm

Medium indirect light (a couple of metres from a window)

Keep evenly moist; water when the surface starts to dry, often once or twice weekly in summer

Light

Medium indirect light (a couple of metres from a window)

Soil

Humus-rich, moist, well-drained

Humidity

50-70%

Temp

-29 to 24°C

Pet safety

Mildly toxic to pets

Mature size

60-80 cm (24-32 in) tall and 45-60 cm (18-24 in) wide

Care at a glance

Light

White Towers Toad Lily wants the spot a few feet back from a sunny window — bright enough to read a paperback at noon, but the sun never falls directly on the leaves. Partial to full shade with bright indirect light. Morning sun and afternoon shade suit it best; strong direct sun scorches the hairy leaves and deep shade reduces flower numbers. A faint hand shadow at midday is the right amount; a sharp dark shadow means it's getting direct sun and probably too much.

Watering

Water white towers toad lily keep evenly moist; water when the surface starts to dry, often once or twice weekly in summer. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Dislikes drying out, which causes leaf-tip scorch and dropped buds. Hold steady moisture through growth and flowering, then reduce as the plant dies back for winter.

Soil and pot

White Towers Toad Lily grows best in humus-rich, moist, well-drained. Prefers fertile, leafy, moisture-retentive soil with a slightly acidic to neutral pH. Amend with leaf mould or compost and mulch to keep roots cool and moist; avoid waterlogged soil that rots the crown. 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

White Towers Toad Lily sits happiest at around 50-70% humidity and -29 to 24°C (-20 to 75°F). A hardy outdoor perennial that favours the cool, moist air of shaded borders. Average to slightly elevated humidity keeps the white blooms and soft leaves in good condition; dry exposed sites cause browning. If you keep the room above 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 white towers toad lily sparingly. Apply a balanced slow-release fertiliser in spring or top-dress with compost as growth resumes. A light midsummer feed sustains the autumn display. Avoid heavy nitrogen, which favours foliage over the white flowers. 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 white towers toad lily in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Leaf-edge scorchBrown, crisped margins signal sun or drought stress. Site in dappled or afternoon shade and keep soil evenly moist so the foliage stays clean behind the white flowers.
  • Slug and snail grazingTender spring shoots are a favourite target. Protect emerging growth with barriers, traps or wildlife-safe controls before damage builds up.
  • Stems leaning or floppingTall arching stems can splay in rich soil or exposed sites. Grow among supportive neighbours or stake discreetly to keep the autumn flowers upright.
  • Reduced flowering in deep shadeToo little light yields leaves but few blooms. Give bright indirect light or gentle morning sun to maximise the luminous white flower display.

Propagation

Divide clumps in early spring as growth begins, or take basal cuttings in late spring. As a named cultivar it must be propagated vegetatively to stay true — seed will not reproduce the pure-white form reliably. 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

White Towers Toad Lily is mildly toxic to pets. Tricyrtis is not individually listed by the ASPCA Toxic or Non-Toxic Plant database, so its status is uncertain; treat with caution and verify with a vet. Toad lilies are NOT true lilies (Lilium) and lack the severe feline kidney-failure risk of Lilium and Hemerocallis — but this cultivar is not confirmed pet-safe, so keep pets from chewing it and seek veterinary advice if eaten. 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.

White Towers Toad Lily care — frequently asked questions

What is the common name for Tricyrtis hirta 'White Towers'?

Tricyrtis hirta 'White Towers' is most commonly called White Towers Toad Lily, but it is also known as White Towers toad lily, white hairy toad lily. The names refer to the same species, so care instructions for White Towers Toad Lily apply identically to anything sold as white hairy toad lily.

How much light does white towers toad lily need?

White Towers Toad Lily grows best in medium indirect light (a couple of metres from a window). Partial to full shade with bright indirect light. Morning sun and afternoon shade suit it best; strong direct sun scorches the hairy leaves and deep shade reduces flower numbers.

How often should I water white towers toad lily?

Water white towers toad lily keep evenly moist; water when the surface starts to dry, often once or twice weekly in summer. Dislikes drying out, which causes leaf-tip scorch and dropped buds. Hold steady moisture through growth and flowering, then reduce as the plant dies back for winter. 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 white towers toad lily toxic to cats and dogs?

White Towers Toad Lily is mildly toxic to pets. Tricyrtis is not individually listed by the ASPCA Toxic or Non-Toxic Plant database, so its status is uncertain; treat with caution and verify with a vet. Toad lilies are NOT true lilies (Lilium) and lack the severe feline kidney-failure risk of Lilium and Hemerocallis — but this cultivar is not confirmed pet-safe, so keep pets from chewing it and seek veterinary advice if eaten.

What USDA hardiness zone does white towers toad lily grow in?

White Towers Toad Lily is rated for USDA zone 4-9 (hardy garden perennial) and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

White Towers Toad Lily deep-dive guides

Every aspect of white towers toad lily care, each with its own calibrated guide:

Featured in these plant shortlists

White Towers Toad Lily qualifies for 6 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best low-light houseplantsHouseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
  • Best plants for a north-facing windowHouseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
  • Best humidity-loving houseplantsHouseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
  • Best bathroom plantsHumidity-loving houseplants that also cope with lower light — suited to the steamy, often-dim conditions of a typical bathroom.
  • Best flowering houseplantsIndoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
  • Best houseplants for a cool roomHouseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

White Towers Toad Lily is also commonly called White Towers toad lily or white hairy toad lily.