Macadamia vs Peacock Fern Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Macadamia
Macadamia integrifolia
Macadamia integrifolia is an evergreen tree native to Australia, known primarily for its edible nuts. It typically grows to a height of 12-15 meters in its natural habitat. The tree has glossy, leathery leaves and produces clusters of small, white or pink flowers. While primarily an outdoor tree cultivated for nut production, it is occasionally grown indoors in large containers, though fruiting is unlikely. People grow it for its ornamental value and the potential (though rare indoors) to harvest nuts.
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 | Macadamia | Peacock Fern |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight per day) | Bright, indirect light. Avoid direct sunlight, which can scorch the delicate fronds. |
| Watering | Every 1-2 weeks, depending on environmental conditions and pot size. | Every 2-3 days, depending on humidity and temperature |
| Humidity | 40-60% | 70-90% |
| Temperature | 18-24°C | 18-24°C |
| Care Level | Expert | Moderate |
| Growth Rate | Moderate | Moderate |
| Max Height | 2-3 meters (indoors in a container, unlikely to reach full outdoor size) | 0.3-0.6 meters |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Well-draining, slightly acidic soil mix (e.g., a mix of potting soil, perlite, and sand) | Well-draining, moisture-retentive mix such as peat moss, perlite, and vermiculite. |
| Beginner Friendly | ❌ No | With Caution |
| Weekly Maintenance | 30 minutes weekly | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Macadamia
| Scientific Name | Macadamia integrifolia |
|---|---|
| Family | Proteaceae |
| Native To | Australia (Queensland and New South Wales) |
| Also Known As | Macadamia Nut Tree, Queensland Nut, Bush Nut, Macadamia |
| Leaves | The leaves are oblong to elliptic, 10-25 cm long and 3-8 cm wide, with a leathery texture and glossy green color. The margins are usually smooth but may be slightly serrated when young. |
| Flowers | Rarely flowers indoors. Outdoors, it produces clusters of small, fragrant, white or pink flowers. |
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
Macadamia
Peacock Fern
🌱 Propagation — Comparing Plant Growth
Macadamia
Methods: Seed, Grafting, Air Layering
Difficulty: Difficult
Tips: Grafting is the most reliable method. Seeds require scarification and a long germination period. Air layering can be attempted but is not always successful.
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
Macadamia
Macadamia integrifolia is unique as a nut-bearing tree that can be grown indoors, although fruiting is unlikely. Its glossy, leathery leaves and potential for nut production make it a distinctive ornamental plant.
- ✓ Provides a unique and exotic aesthetic to your home.
- ✓ Can potentially produce edible nuts (though unlikely indoors).
- ✓ Offers a connection to nature.
- ✓ Can improve indoor air quality (though not significantly).
- ✓ Provides a rewarding challenge for experienced plant owners.
- ⚠️ 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
Macadamia
Peacock Fern
🌞 Light Requirements
Macadamia
Full sun (at least 6-8 hours of direct sunlight per day)
Low light tolerant: ❌ No
Peacock Fern
Bright, indirect light. Avoid direct sunlight, which can scorch the delicate fronds.
Low light tolerant: ❌ No
💧 Watering Needs
Macadamia
Water deeply when the top inch of soil is dry. Ensure good drainage to prevent root rot. Overwatering can lead to yellowing leaves and root rot. Underwatering can cause leaf drop and stunted growth.
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
Macadamia
Temperature: 18-24°C
Humidity: 40-60%
Peacock Fern
Temperature: 18-24°C
Humidity: 70-90%
🤔 Which Plant Is Right For You?
Macadamia
Macadamia integrifoliaExperienced plant enthusiasts willing to provide the specific conditions required for a challenging indoor tree.
✅ Choose This Plant If...
- You are an experienced plant owner looking for a challenge.
- You have a very bright, sunny indoor space or are willing to use grow lights.
- You appreciate the aesthetic of a small tree indoors.
- You are fascinated by nut-bearing trees and want to try growing one as a novelty.
- You understand that fruiting indoors is unlikely but enjoy the foliage.
❌ Skip This Plant If...
- You have pets (especially dogs) due to the toxicity of the nuts.
- You have limited space or low light conditions.
- You are a beginner plant owner.
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
Macadamia is rated Expert care level, while Peacock Fern is Moderate.
💡 Pro Tips For Comparing These Plants
Macadamia Care Tips
Macadamia integrifolia is challenging to grow indoors due to its high light requirements and large size. It needs well-draining soil, consistent watering, and occasional fertilization. Providing adequate humidity and preventing pests are also crucial for success. Fruiting indoors is highly unlikely.
- Provide supplemental light with grow lights to ensure adequate light exposure.
- Use a well-draining potting mix to prevent root rot.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize regularly during the growing season with a balanced fertilizer.
- Monitor for pests and treat promptly to prevent infestations.
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
Macadamia
Peacock Fern
❓ Frequently Asked Questions — Comparing These Plants
Macadamia
What are the light requirements for Macadamia?
Macadamia trees thrive in bright, indirect light when grown indoors. Insufficient light can lead to leggy growth and reduced flowering and nut production (though nut production indoors is already difficult). A location near an east- or west-facing window is ideal. Avoid placing the tree in direct sunlight, especially during the hottest part of the day, as this can scorch the leaves.
How do I care for Macadamia?
Macadamia trees require bright, indirect light when grown indoors. Direct sunlight can scorch the leaves. Water thoroughly when the top inch of soil is dry, ensuring proper drainage to prevent root rot. Maintain a humidity level of 50-60%, which can be achieved through regular misting or a humidifier.
How do I propagate Macadamia?
Macadamia trees can be propagated through stem cuttings or air layering. Stem cuttings should be taken from semi-hardwood growth in the spring or summer. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the cutting moist and humid until roots develop.
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: May 7, 2026 — Plant care data reviewed and verified by our editorial team.