Citronella vs Pteris Fern Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Citronella
Cymbopogon nardus or Cymbopogon winterianus
Citronella is a perennial clumping grass known for its distinct citrusy scent, primarily due to the presence of citronellal and geraniol in its leaves. It typically grows to a height of 3-6 feet. It's primarily grown outdoors for its mosquito-repelling properties, although the effectiveness is debated and requires crushing the leaves to release the oils. It is not naturally an indoor plant and requires very specific conditions to thrive indoors.
Pteris Fern
Pteris ensiformis
Pteris ensiformis, commonly known as the Silver Brake Fern, is a terrestrial fern characterized by its arching fronds and striking silver-white variegation on the central pinnae. It typically grows to a height of 1-2 feet. While it can be grown indoors, it requires specific conditions to thrive, often making it more challenging than other common houseplants. It is grown for its attractive foliage and delicate appearance, adding a touch of elegance to indoor spaces or shaded gardens. It is naturally an outdoor plant in warmer climates.
Quick Plant Comparison
| Feature | Citronella | Pteris Fern |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Bright, indirect light. Avoid direct sunlight, which can scorch the fronds. |
| Watering | Every 3-7 days depending on weather and soil drainage. | Every 3-7 days, depending on environmental conditions |
| Humidity | 40-60% | 60-80% |
| Temperature | 18-30°C | 18-24°C |
| Care Level | Expert | Moderate |
| Growth Rate | Fast | Moderate |
| Max Height | 1-2 meters outdoors, significantly smaller indoors (0.3-0.6 meters) | 30-60 cm |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining loamy soil | Well-draining, slightly acidic potting mix rich in organic matter. A mix of peat moss, perlite, and potting soil works well. |
| Beginner Friendly | ❌ No | With Caution |
| Weekly Maintenance | 15 minutes weekly | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Citronella
| Scientific Name | Cymbopogon nardus or Cymbopogon winterianus |
|---|---|
| Family | Poaceae (Grass family) |
| Native To | Asia (Sri Lanka, India, Indonesia) |
| Also Known As | Citronella grass, Nardus grass, Mana grass |
| Leaves | The leaves are long, slender, and green, with a rough texture. They are typically 1-3 cm wide and up to 1 meter long. When crushed, the leaves release a strong citrus scent. |
| Flowers | Citronella rarely flowers indoors. Outdoors, it produces panicles of small, inconspicuous flowers. |
Pteris Fern
| Scientific Name | Pteris ensiformis |
|---|---|
| Family | Pteridaceae |
| Native To | Tropical and subtropical regions of Asia and the Pacific Islands |
| Also Known As | Silver Brake Fern, Slender Brake Fern, Sword Brake Fern, Victoria Fern |
| Leaves | The fronds are pinnate, meaning they are divided into leaflets (pinnae) arranged along a central stem. The pinnae are lance-shaped and have serrated edges. The central pinnae are typically silver-white, while the outer pinnae are green. The texture is delicate and slightly glossy. |
| Flowers | Pteris ferns do not flower. They reproduce via spores, which are found on the underside of the fronds. |
📏 Size & Growth — Plant Comparison
Citronella
Pteris Fern
🌱 Propagation — Comparing Plant Growth
Citronella
Methods: Division, Seed
Difficulty: Easy
Tips: Divide established clumps in spring or early summer. Ensure each division has healthy roots and shoots. Plant in well-draining soil and water thoroughly.
Pteris Fern
Methods: Spores, Division
Difficulty: Moderate
Tips: Division is best done in spring. Carefully separate the rhizomes, ensuring each section has healthy fronds and roots. Spores require a sterile environment and consistent moisture.
✨ Benefits & Features — Comparing Plant Value
Citronella
The strong citrus scent is the most unique characteristic. The plant's mosquito-repelling properties, though debated, are also a key feature. It is a fast-growing grass that can quickly fill in garden spaces.
- ✓ Natural mosquito repellent (when crushed)
- ✓ Pleasant citrus scent
- ✓ Fast-growing ground cover
- ✓ Adds texture and movement to the garden
- ✓ Relatively easy to propagate
- ⚠️ Toxic to pets
Pteris Fern
The silver-white variegation on the central pinnae distinguishes it from other ferns. Its delicate, arching fronds create an elegant and graceful appearance. It requires higher humidity than many other common houseplants.
- ✓ Adds a touch of elegance to indoor spaces.
- ✓ Provides a calming and relaxing atmosphere.
- ✓ Can help improve indoor air quality by increasing humidity.
- ✓ Offers a unique and interesting foliage display.
- ✓ Can be a rewarding plant to grow for experienced plant enthusiasts.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Citronella
Pteris Fern
🌞 Light Requirements
Citronella
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Pteris Fern
Bright, indirect light. Avoid direct sunlight, which can scorch the fronds.
Low light tolerant: ❌ No
💧 Watering Needs
Citronella
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Allow soil to drain freely. Signs of underwatering include drooping or browning leaves. Overwatering can cause yellowing leaves and a musty smell from the soil.
Pteris 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 can cause the fronds to dry out and turn brown. Ensure good drainage.
🌡️ Temperature & Humidity
Citronella
Temperature: 18-30°C
Humidity: 40-60%
Pteris Fern
Temperature: 18-24°C
Humidity: 60-80%
🤔 Which Plant Is Right For You?
Citronella
Cymbopogon nardus or Cymbopogon winterianusGardeners with outdoor space looking for a natural mosquito repellent (though effectiveness is limited).
✅ Choose This Plant If...
- You want a natural mosquito repellent for your garden (though effectiveness is limited).
- You enjoy the citrusy scent of the foliage.
- You have a sunny outdoor space.
- You are experienced with plant care and can provide the specific conditions needed.
- You want a fast-growing grass for your garden.
❌ Skip This Plant If...
- You don't have a sunny outdoor space.
- You have pets that might ingest the plant.
- You are looking for a low-maintenance indoor plant.
- You are sensitive to strong scents.
- You live in a climate with harsh winters.
Pteris Fern
Pteris ensiformisExperienced plant enthusiasts who can provide the necessary humidity and consistent care.
✅ Choose This Plant If...
- You appreciate delicate, variegated foliage.
- You can provide high humidity levels.
- You have experience caring for ferns.
- You want a plant that adds a touch of elegance to your space.
- You have a bright, indirectly lit location.
❌ Skip This Plant If...
- You are a beginner plant owner.
- You cannot provide high humidity.
- You have pets that may ingest the plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Citronella is rated Expert care level, while Pteris Fern is Moderate.
Citronella has fast growth, while Pteris Fern grows moderate.
💡 Pro Tips For Comparing These Plants
Citronella Care Tips
Citronella is primarily an outdoor plant. Growing it indoors is challenging due to its high light requirements. It needs full sun, well-draining soil, and careful watering to avoid root rot. It is also toxic to pets, so keep it out of reach.
- Plant in well-draining soil to prevent root rot.
- Provide at least 6-8 hours of direct sunlight daily.
- Water deeply but infrequently, allowing the soil to dry out slightly between waterings.
- Fertilize regularly during the growing season.
- Protect from frost in colder climates.
Pteris Fern Care Tips
Pteris ensiformis requires high humidity, consistent moisture, and bright, indirect light. Maintaining these conditions indoors can be challenging, making it less suitable for beginners. Regular monitoring for pests and diseases is also necessary.
- Mist the fronds regularly to maintain high humidity.
- Use distilled or rainwater to avoid mineral buildup on the leaves.
- Provide good air circulation to prevent fungal diseases.
- Avoid placing the plant near drafts or heat sources.
- Monitor regularly for pests and diseases.
⚠️ Common Problems & Solutions — Plant Care Comparison
Citronella
Pteris Fern
❓ Frequently Asked Questions — Comparing These Plants
Citronella
What are the light requirements for Citronella?
Citronella plants need a good amount of sunlight to thrive. Aim for at least 6 hours of direct sunlight per day for optimal growth and mosquito-repelling potency. If growing indoors, place the plant near a sunny window, preferably south-facing. If natural light is insufficient, supplement with grow lights.
How do I care for Citronella?
Citronella plants thrive in well-draining soil and prefer full sun to partial shade. Water regularly, allowing the soil to dry slightly between waterings. Avoid overwatering, which can lead to root rot. Fertilize every 4-6 weeks during the growing season (spring and summer) with a balanced fertilizer to promote healthy growth and flowering.
How do I propagate Citronella?
Citronella can be propagated through several methods. Division involves separating the plant into smaller clumps and repotting them. Stem cuttings can be taken from healthy stems and rooted in water or soil. Keikis, or baby plants, sometimes form on mature plants and can be carefully removed and potted.
Pteris Fern
What are the light requirements for Pteris Fern?
Pteris Ferns require bright, indirect light to thrive. Avoid direct sunlight, which can burn their delicate fronds. An east-facing window is often ideal, providing gentle morning light. A north-facing window can also work, but the fern may not grow as vigorously. If placing the fern near a south- or west-facing window, use sheer curtains to filter the light. Insufficient light can lead to leggy growth and pale foliage. Observe your fern carefully; if the fronds start to yellow or brown, it may be receiving too much light. Conversely, if the growth is weak and sparse, it may need more light.
How do I care for Pteris Fern?
Pteris Ferns thrive in bright, indirect light. Direct sunlight can scorch their delicate fronds. Water regularly, keeping the soil consistently moist but not waterlogged. Ensure good drainage to prevent root rot. High humidity is crucial; aim for 50% or higher. Use a humidifier, pebble tray, or group plants together to increase humidity. Fertilize monthly during the growing season (spring and summer) with a diluted balanced liquid fertilizer. Repot annually in spring into a slightly larger pot with well-draining potting mix. Prune away any dead or damaged fronds to maintain appearance and encourage new growth. Maintain a temperature between 60-75°F (15-24°C). Avoid drafts and sudden temperature changes.
How do I propagate Pteris Fern?
Pteris Ferns can be propagated by division or spores. For division, carefully remove the fern from its pot and gently separate the root ball into smaller sections, ensuring each section has healthy fronds and roots. Repot each section into its own pot with fresh potting mix. Keep the soil consistently moist and provide high humidity. Propagating from spores is more challenging. Collect spores from mature fronds by placing them in a paper bag until they are released. Sow the spores on a sterile potting mix, cover with a plastic dome to maintain humidity, and keep in a warm, bright location. Germination can take several weeks or months. Once the sporelings are large enough to handle, transplant them into individual pots.
Last updated: April 28, 2026 — Plant care data reviewed and verified by our editorial team.