Large-flowered Butterwort (Pinguicula grandiflora)

Large-flowered Butterwort

Pinguicula grandiflora

It traps insects with sticky leaves, a quiet carnivorous beauty. Rosette-forming herbaceous perennial; common name: large-flowered butterwort.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Bright indirect sunlight with 1–2 hours of morning direct sun; avoid intense midday summer sun that can scorch leaves
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Watering Keep soil consistently moist but not waterlogged; use distilled, rain, or reverse-osmosis water to prevent mineral buildup that harms sensitive roots
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Temperature Thrives in cool to temperate conditions; tolerates light frost (down to 5°C) during winter dormancy
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Characteristics

  • Leaf: Basal rosette of fleshy, pale green leaves coated in sticky glandular hairs to trap and digest small insects
  • Flower: Showy purple-pink, funnel-shaped blooms on thin, upright leafless stalks
  • Stem: Slender, delicate flowering stalks that rise 10–20 cm above the leaf rosette
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Care Guide

Watering

Maintain consistent soil moisture using tray watering to keep humidity high

Fertilization

Diluted carnivorous plant fertilizer once monthly (optional, as insects provide most nutrients). Do not use standard houseplant fertilizers, as they contain excessive minerals that are toxic to carnivorous roots

N/A:Carnivorous plants obtain sufficient nutrients from trapped insects; additional fertilizers are not recommended
Pruning
  • Remove dead, browned leaves after winter dormancy to keep the rosette tidy
  • Trim spent flower stalks once blooms fade to redirect energy to new leaf growth
  • Repot every 2–3 years in spring; handle delicate roots with care to avoid damage
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Carnivorous ornamental plant for bog gardens, terrariums, or container cultivation