Greater Celandine vs Peacock Fern Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Greater Celandine
Chelidonium majus
Greater celandine is a herbaceous perennial plant typically growing to a height of 30-120 cm. It features deeply lobed, bluish-green leaves and produces small, yellow flowers in umbel-like clusters from spring to autumn. The plant is characterized by its orange-yellow latex sap, which exudes when stems are broken. It is primarily an outdoor plant, often found in waste places and along roadsides. People sometimes grow it for its purported medicinal properties, though caution is advised due to its toxicity.
Peacock Fern
Selaginella willdenowii
Selaginella willdenowii, commonly known as Peacock Fern, is a fern ally prized for its iridescent blue-green foliage. This plant is not a true fern but a spikemoss. The shimmering effect is caused by structural coloration, where light reflects off the leaf surface. It thrives in humid, shaded environments, mimicking its native rainforest habitat. While it can be grown indoors, maintaining the necessary humidity is crucial for its survival. People grow it for its unique and captivating foliage, adding a touch of exotic beauty to indoor spaces or terrariums. It is primarily an outdoor plant in tropical climates.
Quick Plant Comparison
| Feature | Greater Celandine | Peacock Fern |
|---|---|---|
| Light | Partial shade to full sun. Requires at least 4 hours of direct sunlight outdoors. | Bright, indirect light. Avoid direct sunlight, which can scorch the delicate fronds. |
| Watering | Every 7-10 days during the growing season, less frequently in winter. | Every 2-3 days, depending on humidity and temperature |
| Humidity | 30-50% | 70-90% |
| Temperature | 10-24°C | 18-24°C |
| Care Level | Expert | Moderate |
| Growth Rate | Moderate | Moderate |
| Max Height | 30-120 cm (outdoor) | 0.3-0.6 meters |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Well-drained soil, such as a loamy or sandy soil with good drainage. | Well-draining, moisture-retentive mix such as peat moss, perlite, and vermiculite. |
| Beginner Friendly | ❌ No | With Caution |
| Weekly Maintenance | 15 minutes weekly (outdoor) | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Greater Celandine
| Scientific Name | Chelidonium majus |
|---|---|
| Family | Papaveraceae |
| Native To | Europe and Western Asia; naturalized in North America and other regions. |
| Also Known As | Greater celandine, Tetterwort, Swallowwort, Wartweed |
| Leaves | Pinnately lobed, bluish-green leaves, 5-20 cm long, with rounded or obtuse lobes. The leaves are alternate and have a somewhat hairy texture. |
| Flowers | Small, bright yellow flowers, about 1-2 cm in diameter, arranged in umbel-like clusters. Blooms from spring to autumn outdoors. Rarely flowers indoors. |
Peacock Fern
| Scientific Name | Selaginella willdenowii |
|---|---|
| Family | Selaginellaceae |
| Native To | Southeast Asia, Malaysia |
| Also Known As | Peacock Fern, Willdenow's Spikemoss |
| Leaves | The leaves are small, scale-like, and densely packed along the stems. They have a shimmering, iridescent blue-green color that changes with the angle of light. The texture is delicate and slightly papery. |
| Flowers | It rarely flowers indoors. In its natural habitat, it produces spores rather than flowers. |
📏 Size & Growth — Plant Comparison
Greater Celandine
Peacock Fern
🌱 Propagation — Comparing Plant Growth
Greater Celandine
Methods: Seed, Root division
Difficulty: Moderate
Tips: Sow seeds in spring or autumn. Divide established plants in early spring or late autumn. Ensure good drainage for successful propagation.
Peacock Fern
Methods: Division, Spores
Difficulty: Moderate
Tips: Divide the plant at the roots, ensuring each division has healthy fronds and roots. Plant in a moist, well-draining potting mix. For spores, sow them on a moist peat moss surface and keep them humid until germination.
✨ Benefits & Features — Comparing Plant Value
Greater Celandine
The plant's distinctive orange-yellow sap is a key identifier. Its historical use in traditional medicine, though requiring extreme caution, sets it apart from many other garden plants.
- ✓ Attracts pollinators
- ✓ Adds visual interest to a naturalized garden
- ✓ Historically used in traditional medicine (with extreme caution)
- ✓ Can be used as a ground cover in suitable conditions
- ✓ Provides a unique texture to the garden with its lobed leaves.
- ⚠️ Toxic to pets
Peacock Fern
The iridescent blue-green foliage is its most striking feature, caused by structural coloration. It is a fern ally, not a true fern, belonging to the spikemoss family.
- ✓ Adds a unique aesthetic appeal to indoor spaces.
- ✓ Creates a calming and relaxing atmosphere.
- ✓ Can improve air quality by increasing humidity.
- ✓ Provides a sense of connection to nature.
- ✓ Offers a rewarding challenge for plant enthusiasts.
- 🐾 Pet Safe
📅 Maintenance Schedule — Plant Care Comparison
Greater Celandine
Peacock Fern
🌞 Light Requirements
Greater Celandine
Partial shade to full sun. Requires at least 4 hours of direct sunlight outdoors.
Low light tolerant: ❌ No
Peacock Fern
Bright, indirect light. Avoid direct sunlight, which can scorch the delicate fronds.
Low light tolerant: ❌ No
💧 Watering Needs
Greater Celandine
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Reduce watering during the dormant winter period. Signs of overwatering include yellowing leaves and a soggy soil. Underwatering is indicated by wilting and dry, crispy leaves.
Peacock Fern
Keep the soil consistently moist but not waterlogged. Water when the top inch of soil feels slightly dry. Overwatering can lead to root rot, while underwatering will cause the fronds to dry out and turn brown. Use distilled or rainwater to avoid mineral buildup.
🌡️ Temperature & Humidity
Greater Celandine
Temperature: 10-24°C
Humidity: 30-50%
Peacock Fern
Temperature: 18-24°C
Humidity: 70-90%
🤔 Which Plant Is Right For You?
Greater Celandine
Chelidonium majusExperienced gardeners who understand its toxicity and can provide the necessary outdoor conditions.
✅ Choose This Plant If...
- You have a specific outdoor area with partial shade
- You are an experienced gardener familiar with toxic plants
- You are interested in traditional medicinal uses (with extreme caution and professional guidance)
- You have a well-drained garden bed
- You want to attract certain pollinators to your garden.
❌ Skip This Plant If...
- You have pets or small children who might ingest the plant
- You are a beginner gardener
- You are looking for an easy-to-grow indoor plant.
Peacock Fern
Selaginella willdenowiiExperienced plant enthusiasts who can provide a humid environment.
✅ Choose This Plant If...
- You are captivated by unique foliage and iridescent colors.
- You can provide a consistently humid environment.
- You enjoy the challenge of caring for slightly more demanding plants.
- You want to add a touch of the rainforest to your home.
- You have a terrarium or greenhouse where it can thrive.
❌ Skip This Plant If...
- You struggle to maintain high humidity levels.
- You tend to overwater plants.
- You prefer low-maintenance plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Greater Celandine is rated Expert care level, while Peacock Fern is Moderate.
💡 Pro Tips For Comparing These Plants
Greater Celandine Care Tips
Greater celandine is primarily an outdoor plant and is challenging to grow indoors. It requires specific light conditions and well-drained soil. Due to its toxicity, it's crucial to handle it with care and keep it away from pets and children. It is not recommended as an indoor plant.
- Wear gloves when handling the plant to avoid skin irritation from the sap.
- Provide well-drained soil to prevent root rot.
- Monitor for pests and diseases regularly.
- Deadhead spent flowers to encourage continued blooming.
- Keep the plant away from areas frequented by pets and children.
Peacock Fern Care Tips
Peacock Fern requires high humidity and consistent moisture, making it challenging to grow indoors without proper conditions. It needs bright, indirect light and well-draining soil. Regular misting or a humidifier is essential to maintain adequate humidity levels. It is more suited to terrariums or greenhouses.
- Maintain high humidity by misting regularly or using a humidifier.
- Use distilled or rainwater to avoid mineral buildup on the fronds.
- Provide bright, indirect light to enhance the iridescence.
- Avoid placing the plant near drafts or heat sources.
- Monitor for pests and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Greater Celandine
Peacock Fern
❓ Frequently Asked Questions — Comparing These Plants
Greater Celandine
What are the light requirements for Greater Celandine?
Greater Celandine prefers partial shade to full shade, thriving in locations that receive dappled sunlight or filtered light throughout the day. Avoid direct sunlight, especially during the hottest part of the day, as it can scorch the leaves. An east-facing location or a spot under a tree canopy is ideal. Insufficient light can result in leggy growth and reduced flowering. If growing indoors, place the plant near a north-facing window or provide artificial light with a grow light for several hours per day. Monitor the plant for signs of stress, such as pale leaves or sunburn, and adjust the light accordingly.
How do I care for Greater Celandine?
Greater Celandine thrives in partial shade to full shade and prefers moist, well-drained soil. Water regularly, especially during dry periods, but avoid overwatering to prevent root rot. Fertilize sparingly with a balanced liquid fertilizer diluted to half strength, only during the growing season (spring and summer) to encourage blooming. Deadhead spent flowers to promote further blooming and prevent excessive self-seeding. Monitor for pests such as aphids and slugs, and treat accordingly. Prune back any dead or damaged foliage to maintain plant health and appearance. Provide adequate air circulation to prevent fungal diseases. Mulch around the base of the plant to retain moisture and suppress weeds. Repotting is rarely necessary as Greater Celandine prefers to be slightly root-bound.
How do I propagate Greater Celandine?
Greater Celandine can be propagated through division. In early spring or fall, carefully dig up the plant and gently separate the roots into smaller clumps, ensuring each clump has healthy roots and foliage. Replant the divisions in well-draining soil and water thoroughly. Keep the soil consistently moist until new growth appears. Stem cuttings are not a reliable method for propagation. Greater Celandine does not produce keikis. Division is the most effective and straightforward way to propagate this plant, allowing you to expand your collection or share it with others. Ensure the divisions are planted in a location with similar light and soil conditions as the parent plant.
Peacock Fern
What are the light requirements for Peacock Fern?
Peacock Fern requires bright, indirect light to maintain its vibrant color. Direct sunlight can burn its delicate fronds, causing them to turn brown and crispy. An east-facing window is ideal, providing gentle morning light. If placing it near a south- or west-facing window, use a sheer curtain to filter the light.
How do I care for Peacock Fern?
Peacock Fern thrives in bright, indirect light. Direct sunlight can scorch its delicate fronds. Maintain consistently moist soil, but avoid waterlogging. Water when the top inch of soil feels slightly dry. High humidity is crucial; aim for 60-80%. Use a humidifier, pebble tray, or group plants together to increase humidity.
How do I propagate Peacock Fern?
Peacock Fern can be propagated through division or by spores. Division is the easier method. In spring, gently remove the plant from its pot and carefully separate the root ball into smaller sections, ensuring each section has healthy fronds and roots. Plant each section in its own pot with well-draining soil. Keep the soil consistently moist and provide high humidity.
Last updated: April 21, 2026 — Plant care data reviewed and verified by our editorial team.