Citronella vs Oleaster 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.
Oleaster
Elaeagnus pungens
Elaeagnus pungens, commonly known as Thorny Olive or Silverthorn, is a dense, evergreen shrub or small tree. It is characterized by its silvery-green foliage, often speckled with brown. The leaves are leathery and alternate, with a wavy margin. Small, fragrant, creamy-white flowers appear in autumn, followed by reddish-brown, olive-like fruits in spring. It is primarily grown as an ornamental plant for its attractive foliage and tolerance of difficult conditions. It is not typically grown indoors due to its size and high light requirements. It can become invasive in some regions.
Quick Plant Comparison
| Feature | Citronella | Oleaster |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Full sun to partial shade |
| Watering | Every 3-7 days depending on weather and soil drainage. | Every 1-2 weeks, depending on weather and soil drainage |
| Humidity | 40-60% | 30-50% |
| Temperature | 18-30°C | 10-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate To Fast |
| Max Height | 1-2 meters outdoors, significantly smaller indoors (0.3-0.6 meters) | Not suitable for indoor growing. Outdoors: 3-8 meters |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining loamy soil | Well-draining soil; tolerates a wide range of soil types, including sandy and clay soils |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes weekly | 30 minutes monthly |
🔬 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. |
Oleaster
| Scientific Name | Elaeagnus pungens |
|---|---|
| Family | Elaeagnaceae |
| Native To | Japan and China |
| Also Known As | Thorny Olive, Silverthorn |
| Leaves | The leaves are alternate, leathery, and oblong to lanceolate in shape. They are silvery-green on the upper surface and silvery-brown beneath, often speckled with brown spots. The margins are wavy. |
| Flowers | It produces small, fragrant, creamy-white flowers in autumn. The flowers are bell-shaped and inconspicuous, but their fragrance is noticeable. |
📏 Size & Growth — Plant Comparison
Citronella
Oleaster
🌱 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.
Oleaster
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late summer or early autumn. Rooting hormone can improve success. Seeds require stratification.
✨ 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
Oleaster
Elaeagnus pungens is unique for its silvery-green foliage and fragrant flowers that bloom in the fall. It is also highly adaptable to various soil types and environmental conditions, making it a robust choice for challenging landscapes.
- ✓ Provides year-round greenery
- ✓ Offers fragrant flowers in the fall
- ✓ Attracts birds and other wildlife
- ✓ Tolerates drought and poor soil
- ✓ Provides a natural screen or hedge
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Citronella
Oleaster
🌞 Light Requirements
Citronella
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Oleaster
Full sun to partial shade
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.
Oleaster
Water deeply when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Established plants are drought-tolerant.
🌡️ Temperature & Humidity
Citronella
Temperature: 18-30°C
Humidity: 40-60%
Oleaster
Temperature: 10-27°C
Humidity: 30-50%
🤔 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.
Oleaster
Elaeagnus pungensGardeners looking for a low-maintenance, evergreen shrub for hedging or screening in a sunny location.
✅ Choose This Plant If...
- You want a low-maintenance evergreen shrub.
- You need a plant that tolerates poor soil.
- You want fragrant flowers in the fall.
- You need a plant for hedging or screening.
- You want to attract birds to your garden.
❌ Skip This Plant If...
- You have limited space.
- You are looking for an indoor plant.
- You live in an area where it is considered invasive.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Citronella needs full sun (at least 6-8 hours of direct sunlight daily), while Oleaster prefers full sun to partial shade.
Citronella has fast growth, while Oleaster grows moderate to fast.
💡 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.
Oleaster Care Tips
Elaeagnus pungens is an outdoor shrub or small tree that is not suited for indoor growing due to its size and high light requirements. It needs full sun and well-draining soil. It can become invasive in some areas. Requires regular pruning to maintain shape.
- Plant in well-draining soil in a sunny location.
- Water deeply but infrequently, allowing the soil to dry out between waterings.
- Prune regularly to maintain shape and control size.
- Fertilize in spring with a balanced slow-release fertilizer.
- Monitor for pests and diseases and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Citronella
Oleaster
❓ 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.
Oleaster
What are the light requirements for Oleaster?
Oleaster thrives in bright, indirect light. Insufficient light can lead to leggy growth and dull foliage. Ideally, place your Oleaster near an east- or west-facing window where it can receive several hours of filtered sunlight each day. Avoid direct sunlight, which can scorch the leaves. Rotate the plant regularly to ensure even light exposure on all sides. If natural light is limited, supplement with a grow light. Position the grow light 12-18 inches above the plant for 12-14 hours per day. Observe the plant’s foliage: pale or stretched leaves indicate a need for more light.
How do I care for Oleaster?
Oleaster plants thrive indoors with bright, indirect light. Water thoroughly when the top inch of soil feels dry, ensuring proper drainage to prevent root rot. Maintain moderate humidity levels, especially during dry winter months, by misting the foliage or using a humidifier. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to maintain shape and remove any dead or damaged branches. Repot every 2-3 years into a slightly larger pot with well-draining potting mix. Maintain a stable temperature between 60-75°F (15-24°C). Monitor for pests such as spider mites and treat promptly with insecticidal soap. Ensure good air circulation to prevent fungal diseases.
How do I propagate Oleaster?
Oleaster can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from new growth in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist in a humid environment. Roots should develop in 4-6 weeks. For air layering, make a small incision on a stem and wrap it with moist sphagnum moss. Cover the moss with plastic wrap and secure it with tape. Roots should develop within a few months. Once roots are visible, cut the stem below the rooted area and pot it in a well-draining potting mix.
Last updated: April 20, 2026 — Plant care data reviewed and verified by our editorial team.