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Plant care

Lady Tulip (Clusius's tulip) care

Tulipa clusiana

Also called Lady tulip, Clusius's tulip, Peppermint stick tulip.

RHS H6USDA 3-8Toxic to petsIndoor Typically 25–35 cm (10–14 in) tall in flower

Watering rhythm

Direct sun (at least 4-6 hours)

Moderate in spring; dry in summer

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Light

Direct sun (at least 4-6 hours)

Soil

Well-drained, fertile, neutral to alkaline

Humidity

Low

Temp

-20°C to 28°C

Pet safety

Toxic to pets

Mature size

Typically 25–35 cm (10–14 in) tall in flower

Care at a glance

Light

Lady Tulip needs sun on the leaves, not just bright ambient room light. Performs best in full sun; the flowers open fully only in bright sunlight and the bulbs need summer sun warmth to ripen for reliable repeat flowering. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water lady tulip moderate in spring; dry 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. Water in dry spring weather during active growth, then allow the soil to dry out naturally from early summer; the species tolerates summer drought exceptionally well once established.

Soil and pot

Lady Tulip grows best in well-drained, fertile, neutral to alkaline. Plant 15–20 cm (6–8 in) deep in free-draining, gritty or sandy loam; unlike large-flowered hybrids, this species often perennialises in gravel gardens and the base of warm walls. 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

Lady Tulip sits happiest at around Low humidity and -20°C to 28°C (-4°F to 82°F). Best in low to moderate humidity; good air circulation around the foliage reduces the risk of tulip fire and other fungal issues during the cool, moist spring growing period. 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 lady tulip sparingly. Apply a balanced bulb fertiliser in autumn at planting, or a high-potassium liquid feed in early spring; feeding immediately after flowering helps maintain vigour in naturalised plantings. 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 lady tulip in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Tulip fire (Botrytis tulipae) — Brown, scorched patches on petals and leaves with grey mould in humid conditions. Remove and destroy affected plants immediately; avoid overhead watering and do not replant Tulipa in the same soil for at least two seasons.
  • Viruses (tulip breaking virus) — Produces streaked or feathered colour patterns on petals and mottled foliage; plants weaken progressively. There is no cure — dig up and destroy affected bulbs to prevent spread by aphids.

Propagation

Separate offsets when lifting after summer dormancy and replant at 15–20 cm depth in autumn. The species also sets seed; sow fresh in autumn in a cold frame and expect flowering in 4–6 years. 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

Lady Tulip is toxic to pets. All Tulipa species are listed by ASPCA as toxic to dogs, cats, and horses. The toxic principles are Tulipalin A and B (allergenic lactones), concentrated most heavily in the bulb. Ingestion causes vomiting, diarrhoea, drooling, and depression; large quantities, especially of bulbs, may cause cardiac or respiratory signs. Contact a vet immediately if ingestion is suspected. 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.

Lady Tulip care — frequently asked questions

What is the common name for Tulipa clusiana?

Tulipa clusiana is most commonly called Lady Tulip, but it is also known as Lady tulip, Clusius's tulip, Peppermint stick tulip. The names refer to the same species, so care instructions for Lady Tulip apply identically to anything sold as Clusius's tulip.

How much light does lady tulip need?

Lady Tulip grows best in direct sun (at least 4-6 hours). Performs best in full sun; the flowers open fully only in bright sunlight and the bulbs need summer sun warmth to ripen for reliable repeat flowering.

How often should I water lady tulip?

Water lady tulip moderate in spring; dry in summer. Water in dry spring weather during active growth, then allow the soil to dry out naturally from early summer; the species tolerates summer drought exceptionally well once established. 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 lady tulip toxic to cats and dogs?

Lady Tulip is toxic to pets. All Tulipa species are listed by ASPCA as toxic to dogs, cats, and horses. The toxic principles are Tulipalin A and B (allergenic lactones), concentrated most heavily in the bulb. Ingestion causes vomiting, diarrhoea, drooling, and depression; large quantities, especially of bulbs, may cause cardiac or respiratory signs. Contact a vet immediately if ingestion is suspected.

What USDA hardiness zone does lady tulip grow in?

Lady Tulip is rated for USDA zone 3-8 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Lady Tulip deep-dive guides

Every aspect of lady tulip care, each with its own calibrated guide:

Featured in these plant shortlists

Lady Tulip qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Lady Tulip is also known as Lady tulip, Clusius's tulip, and Peppermint stick tulip.