How to Grow Butterworts - Pinguicula

Pinguicula – Butterworts

Quick Care Summary

  • Light: Bright indirect light to gentle direct sun
  • Water: Distilled, rain, or RO only — keep lightly moist
  • Soil: Well-draining mineral mix (low organic matter)
  • Humidity: 40–70% preferred
  • Temperature: 65–80°F for most types
  • Dormancy: Many form a succulent phase instead of true dormancy
  • Feeding: Optional — catches small insects easily
  • Difficulty: Easy to Moderate (great indoor plant)

Pinguicula, or butterworts, are beautiful carnivorous plants with flat, sticky leaves that trap small insects like fungus gnats. Many species also produce stunning flowers, making them one of the most decorative carnivorous plants you can grow.

Most commonly grown types are Mexican butterworts, which are very adaptable and thrive indoors with bright light and proper watering.

Growing Conditions – Dial This In

Most butterworts sold in cultivation are Mexican species or hybrids, which prefer bright light, airy soil, and slightly drier conditions than other carnivorous plants.

Light

  • Bright indirect light to gentle direct sun
  • 4–6+ hours of bright light daily
  • Strong grow lights work very well indoors

Signs:
Pale leaves → not enough light
Compact growth with slight color → ideal conditions

Temperature

  • Ideal range: 65–80°F (18–27°C)
  • Tolerates slightly warmer conditions if not overly wet

Most Mexican Pinguicula do not require cold dormancy.

Humidity

  • Preferred: 40–70%
  • Adaptable to normal indoor humidity

Avoid overly wet, stagnant environments.

Space

  • Compact, low-growing rosettes
  • Perfect for windowsills and small grow setups

Beginner Varieties

  • Pinguicula moranensis – very adaptable and forgiving
  • Pinguicula esseriana – small and compact
  • Pinguicula ehlersiae – great color and easy care
  • Pinguicula gigantea – larger leaves, very hardy
  • Hybrid varieties – often the easiest and most forgiving

Soil – Mineral and Fast Draining

  • Peat + perlite + sand mix
  • Or mineral-heavy mixes (pumice, perlite, sand)

Butterworts prefer less organic material than most carnivorous plants.

Avoid: rich soil, compost, or fertilizer in the media

Watering – Less Is More

  • Use only distilled, rain, or RO water
  • Keep soil lightly moist during active growth
  • Allow slight drying between watering

During succulent phase (non-carnivorous stage):

  • Reduce watering significantly
  • Keep soil just barely damp

Do not keep constantly waterlogged like flytraps or sundews.

Feeding – Light and Occasional

  • Outdoors: catches small insects naturally
  • Indoors: fungus gnats, tiny insects, or fish food dust

Optional boost:

  • 1/4 strength MaxSea once a month

Apply lightly to leaves as a fine foliar spray.

Use sparingly—too much can damage leaves.

Repotting

  • Every 1–2 years
  • Or when soil compacts or breaks down

Roots are small and delicate—handle gently.

Dormancy / Succulent Phase

Most Mexican butterworts go through a seasonal shift:

  • Carnivorous leaves in active growing season
  • Succulent, non-sticky leaves in cooler or drier periods

This is normal and not a sign of decline.

During this phase:

  • Reduce watering
  • Do not force feeding

Common Issues

  • No dew → not enough light
  • Rotting center → too wet
  • Stretching → low light
  • Sudden decline → usually overwatering

Quick Reality Check

If your butterwort isn’t thriving, it’s usually:

  • Too much water
  • Not enough light
  • Soil too organic

Fix those and they grow compact, colorful, and often flower.

Pro tip: These are some of the best carnivorous plants for indoor growing when kept slightly on the drier side.