Pinguicula gigantea
Pinguicula giganteaUSDA | Grow Zone
10-11Outdoors all year in zones 10 to 11. Anywhere colder, keep it as a houseplant. Protect it below 50°F.
- Light
- Bright, indirect
- Water
- When top inch is dry
- Humidity
- 50-70%
- Temperature
- 60-80°F (15-27°C)
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 6-12 in tall, 4-8 in wide
- Pets
- Non-toxic to pets
Pinguicula gigantea, also known as the giant butterwort, is a fascinating carnivorous plant native to Mexico. Its unique leaf structure attracts and traps insects, making it a captivating addition to any plant collection.
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Ideal temperature
60-80°F is where it grows fastest. Below 50°F cold damage starts.
Spacing and harvest
- Mature size
- 6-12 in tall, 4-8 in wide
- Plant apart
- 6-12 in
- Frost
- Half hardy: light frost only
Everything it needs
9 essentials at a glance
Watering
Pinguicula gigantea prefers to be watered regularly, allowing the top inch of soil to dry out between waterings.
In the growing season (spring and summer), water once a week, and reduce to every two weeks in the dormant season (fall and winter). Signs of over-watering include yellowing leaves and root rot, while under-watering may cause the leaves to become limp and shriveled.
Light
This plant thrives in bright, indirect light or partial shade.
Ideally, it should receive around 6-8 hours of light daily, but it can tolerate some direct sunlight in the morning. Too much direct sunlight can scorch the leaves, while too little light can hinder growth.
Soil
Pinguicula gigantea prefers a well-draining, acidic soil mix.
A recommended composition is a blend of sphagnum moss, perlite, and orchid bark, with a pH range of 4.5 to 6.0. Ensure good drainage to prevent water retention, which can lead to root rot.
Humidity
This plant enjoys high humidity levels, ideally between 50% and 70%.
To increase humidity, you can mist the leaves regularly or place the pot on a tray filled with water and pebbles. Signs of humidity stress include browning leaf edges and wilting.
Temperature
Pinguicula gigantea thrives in temperatures between 60-80°F (15-27°C).
It is best suited for USDA hardiness zones 10-11. While it can tolerate brief periods of cooler temperatures, prolonged exposure to temperatures below 50°F (10°C) can be detrimental.
Fertilizing
Use a diluted, balanced fertilizer (NPK ratio of 10-10-10) every 4-6 weeks during the growing season.
Reduce or eliminate fertilization during the dormant months. Signs of nutrient deficiency include stunted growth and pale leaves.
Pruning
Prune Pinguicula gigantea in early spring to remove any dead or damaged leaves.
Use clean, sharp scissors to avoid damaging the plant. Deadheading is not necessary, but removing spent leaves can help maintain its appearance.
Repotting
Repot every 1-2 years or when the plant outgrows its container.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes or stunted growth. Gently remove the plant from its pot, refresh the soil, and place it in the new pot, ensuring the roots are covered.
Propagation
Propagation can be achieved through leaf cuttings or division.
For leaf cuttings, select a healthy leaf, cut it into sections, and place them in moist soil. Keep the soil consistently damp and provide bright, indirect light. Division can be done during repotting when the plant is actively growing, ensuring each division has roots and leaves.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or insufficient light.
How to fix it
Adjust watering frequency and ensure the plant receives adequate light.
Wilting leaves
Why it happens
Under-watering or low humidity.
How to fix it
Increase watering frequency and humidity levels.
Brown leaf edges
Why it happens
Low humidity.
How to fix it
Increase humidity through misting or using a humidity tray.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Ensure proper drainage and adjust watering habits.
Stunted growth
Why it happens
Nutrient deficiency or inadequate light.
How to fix it
Fertilize appropriately and ensure the plant receives sufficient light.
Care through the year
Spring
In spring, resume regular watering and fertilization as the plant begins its active growth phase. Monitor for pests and adjust light exposure as needed.
Summer
During summer, maintain consistent humidity and ensure the plant receives bright, indirect light. Water regularly to keep the soil moist but not soggy.
Fall
In fall, gradually reduce watering as the plant enters dormancy. Monitor humidity levels and prepare for cooler temperatures.
Winter
In winter, limit watering to every two weeks and avoid fertilization. Keep the plant in a warmer area to prevent cold stress.
Toxicity & Safety
Pinguicula gigantea is considered non-toxic to pets and children. However, ingestion of any plant material may cause mild gastrointestinal upset.
Good to know
How often should I water my Pinguicula gigantea?
Water your Pinguicula gigantea once a week during the growing season, allowing the top inch of soil to dry out between waterings.
What type of soil is best for Pinguicula gigantea?
A well-draining, acidic soil mix is ideal, such as a blend of sphagnum moss, perlite, and orchid bark, with a pH range of 4.5 to 6.0.
Why are my Pinguicula gigantea leaves turning yellow?
Yellow leaves can indicate over-watering or insufficient light. Adjust your watering schedule and ensure the plant receives adequate light.
What humidity level does Pinguicula gigantea prefer?
This plant thrives in high humidity levels, ideally between 50% and 70%. Misting or using a humidity tray can help maintain these levels.
When should I repot my Pinguicula gigantea?
Repot every 1-2 years or when the plant outgrows its container, indicated by roots growing out of the drainage holes.
How do I propagate Pinguicula gigantea?
Propagation can be done through leaf cuttings or division. For leaf cuttings, place healthy leaf sections in moist soil and provide bright, indirect light.
What temperature range is ideal for Pinguicula gigantea?
This plant thrives in temperatures between 60-80°F (15-27°C) and is best suited for USDA hardiness zones 10-11.
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