Eazy Gardening

From Garden to Indoors: Citronella Grass Your Natural Mosquito Repellent

Citronella Grass: Your Natural Mosquito Repellent

Are you tired of being constantly annoyed by mosquitoes and other insects while lounging in your backyard or enjoying an outdoor barbecue with family and friends? If so, you may want to consider growing citronella grass (Cymbopogon nardus) in your garden.

Known for its potent mosquito-repelling properties, citronella grass is an easy-to-grow plant that can enhance your outdoor experience.

Overview of the plant

Common names: Citronella grass, nard grass, mana grass, sereh, sereh wangi,bunga lawang

Vernacular names: West Indian lemongrass, Java citronella, Sri Lankan citronella, Madagascar citronella

Description: Citronella grass is a tall, herbaceous perennial grass that can reach up to six feet in height. The leaves are long and slender, with a sharp, lemon scent.

When crushed, the leaves release a pleasant, citrusy aroma that can repel mosquitoes and other insects. In the fall, citronella grass produces small, brownish-red flowers.

Characteristics: Citronella grass is a popular choice for natural pest control due to its strong essential oil content, which contains components like citronellal, geraniol, and citronellol that have mosquito-repellent properties. The plant looks like a tall, thin blade of grass with narrow leaves, and it grows in tall clumps.

The plant has a strong, pleasant lemony scent when bruised, and it can grow upright or drooping, depending on the cultivar. Blooming habits: When mature, citronella grass produces small panicles of reddish-brown flowers that appear on tall stems.

However, the plant’s primary benefit is obtained during the growth of its leaves, which contain an essential oil that is highly effective at keeping mosquitoes and other pests at bay. Benefits to wildlife: Citronella plants do not have a significant impact on wildlife.

However, the leaves of the plant contain a potent oil that can repel insects, allowing animals to move about without being disturbed.

Plant cultivation and care

Preferred growing conditions: Citronella grass, like most grasses, prefers full sun. The plant requires warm, tropical conditions and cannot survive in very cold environments.

It can grow in a variety of soil types and can tolerate a wide range of soil conditions. However, the soil should be well-draining, as the plant does not tolerate standing water.

Citronella grass is also drought-resistant and can grow in areas with low rainfall. Potential pest and disease issues: Citronella grass is relatively pest and disease-resistant.

However, it can occasionally be attacked by spider mites, aphids, and mealybugs. These pests can be controlled with insecticidal soaps or organic insecticides.

Planting and maintenance tips: Citronella grass can be grown from seed or purchased as a plant. If starting from seed, plant them in well-draining soil in a warm, sunny location.

Keep the soil moist but not waterlogged, and wait for the seeds to germinate. Once the seedlings are established, you can transplant them to your desired location.

If purchasing a plant from a nursery, plant it in well-draining soil and provide ample water for the first few weeks. Once established, the plant can tolerate dry periods, but it should be watered during long periods of drought.

Citronella grass does not require a lot of fertilizer, but it can benefit from an occasional application of a balanced fertilizer. In conclusion, if you are looking for a natural way to keep mosquitoes and other pests at bay, citronella grass may be an ideal solution.

Not only does it perform well, but it is also easy to grow and maintain. Consider adding this fragrant, versatile plant to your garden to improve your outdoor experience.

3) Plant propagation methods

Citronella grass can be propagated through two methods: sexual reproduction and asexual reproduction. Sexual reproduction involves pollinating the flowers of the plant, resulting in the production of seeds.

The seeds can be collected when they are mature and planted in sterile soil during the spring or summer seasons. To increase the germination rate, the seeds can be soaked in hot water overnight to break the dormancy period.

This process will help to speed up the germination process and allow the seedling to appear earlier in the season. Asexual reproduction is known as vegetative propagation.

It is an effective way to propagate citronella grass as it ensures that the plant will have similar features as the mother plant, preserving the unique qualities of the plant. The most common method of vegetative propagation is through stem cuttings.

Cut a mature stem or stalk of 3-6 inches in length from the mother plant, and plant the cutting directly into the soil. It is important to ensure that the cutting has at least one node and is kept in a warm, humid environment.

Within a few weeks, the cutting should produce roots, and new growth will emerge from the node. Another method of asexual propagation involves dividing the root ball of the mother plant after digging it out of the ground, separating the roots into young viable segments and replanting them in individual pots.

4) Plant adaptations to different environments

Citronella grass thrives in warm, tropical environments and is not frost-resistant. The plant creates a strong network of roots that can anchor it and help collect water and nutrients in the soil.

Its narrow leaves with a sharp point enable the plant to hold onto water in hot, dry weather, reducing water loss through evaporation. Additionally, the essential oils produced by citronella grass also help reduce water loss through transpiration.

In terms of soil adaptation, citronella grass can grow in most types of soil, including sand, loam, and clay, but the soil must be well-drained to promote healthy plant growth. It can grow in acidic as well as slightly alkaline soils.

However, it is essential to monitor soil pH levels for optimal growth. Citronella grass can also tolerate low fertility soils, but it will benefit from occasional fertilization for healthier growth.

Citronella grass is an ideal plant for full sun exposure. This plant can grow in areas ranging from light shade to full sun, but it prefers full sun.

The plant uses the sun’s energy and the carbon dioxide present in the air to produce the sugars it needs for growth. Therefore, it is essential to ensure sunlight exposure to the plant canopy for adequate growth.


Propagation methods and adaptation of citronella grass are critical in ensuring that the plant remains healthy and productive. Careful selection of the appropriate method of reproduction and proper adaptation to soil and climatic conditions can guarantee a productive harvest within a short period.

With the ideal growing conditions and proper maintenance, citronella grass can offer a fragrant mosquito-repelling garden solution for many years.

5) Usage of the plant in indoor settings

Citronella grass can be grown indoors and used as a natural air freshener and insect repellent. Growing the plant indoors requires a container big enough to accommodate its height and width, a well-draining soil mix rich in organic matter, and a sunny location.

A bright, south-facing windowsill is an ideal location for indoor plants, but supplemental lighting can be used if natural light is insufficient. To enjoy your indoor citronella grass, the plant should be grown in a container to restrict its growth and prevent it from overcrowding the space.

Keep the soil moist during the growing season, but do not overwater, as this can lead to root rot. During the winter dormant season, reduce watering and fertilizing to ensure the plant’s health.

Citronella grass plants released into the indoors can also act as effective natural air purifiers, filtering harmful indoor pollutants and improving the air quality. Furthermore, the plant’s lemongrass essential oil releases a natural fragrance that can help mask unpleasant odors, relax the mind, and uplift spirits.

The plant’s natural mosquito repellent properties also make it an ideal option for indoor use in controlling pests without the use of harsh chemicals.

6) Usage of the plant in outdoor settings

Citronella grass is a valuable addition to an outdoor setting. Due to its natural mosquito-repelling properties, it is a popular choice for gardens, patios, and other outdoor living spaces.

When planted in and around outdoor living areas or potted and placed near sitting areas, the plant helps to keep mosquitoes, flies, and other pests at bay, allowing you to spend more time outdoors without the menace of bugs. The plant is extremely patient and can withstand extreme weather conditions, with the exception of cold.

Citronella grass will grow well in many types of soils, provided that it is well-drained. Watering regularly will also ensure that your citronella grass plant stays fresh and healthy.

When grown outdoors, it can grow up to six feet tall and up to a few feet in width, and it will quickly become an impressive addition to your garden. To optimize the effectiveness of citronella grass as a mosquito repellent, plant it in areas of your garden where people generally gather or spend quality time, such as near seating or other social areas.

Potted plants can be placed throughout the patio or deck, near outdoor dining areas or along walkways. The plant can also be grown in mixed flower beds with companion plants that offer additional benefits for natural pest control.

In summary, citronella grass can be used to improve both indoor and outdoor living spaces. Indoor plants can be grown in containers and act as natural air fresheners, insect repellents, and air purifiers.

Outdoors, this plant can help to keep mosquitoes and other pests at bay, and it can grow well in most soils and withstand harsh weather conditions. It is a versatile and practical solution that provides a variety of benefits for natural living.

7) Toxicity of the plant to pets and horses, humans

Citronella grass is known to be safe for humans, and its essential oils and extracts are used in a variety of commercial products, including cosmetics, perfumes, and candles. However, citronella grass may have a mild toxicity effect on pets and horses, with gastrointestinal problems being the most common symptom.

It should be noted that the toxic effect is minimal and does not pose a significant threat to pets and horses. Dogs and cats may experience mild gastrointestinal problems when ingesting citronella grass leaves or oil, such as vomiting, diarrhea, or loss of appetite.

In severe cases, the ingestion of large amounts of the plant may result in abdominal pain and severe dehydration. Additionally, horses may be attracted to the strong citrus scent of the plant because of its sweet aroma, leading to over-grazing and, sometimes, colic.

Pet owners who choose to use citronella-based products for mosquito control should be aware of their pets’ behavior and take necessary precautions to keep them away from the plant. It is always advisable to consult a veterinarian for more information on pet and equine toxicity, especially those that have underlying health issues or are on medication.

In conclusion, citronella grass is considered safe for human use and can offer numerous benefits in various applications. While it is considered safe in keeping pests at bay, care should be taken with pets and horses, as ingesting the plant can cause mild gastrointestinal problems.

Thus, to enjoy all of the plant’s benefits without negative side effects, people should always handle citronella grass with caution and avoid placing it in areas where pets and horses can access it. In conclusion, citronella grass is a versatile plant that offers a range of benefits from its mosquito-repelling properties to natural air purification and fragrance.

It can be grown both indoors and outdoors and can serve as a natural way of controlling pests without the use of harmful chemicals. While it is safe for humans, pet owners should be cautious of their pets’ behavior and take necessary precautions to prevent any digestive problems.

Overall, citronella grass can help create a safe, healthy, and pleasant environment both inside and outside the home. FAQs:

Q: Can I plant citronella grass indoors?

A: Yes, citronella grass can be planted indoors as long as it has adequate sunlight, well-draining soil, and a container that can accommodate its size. Q: What is the benefit of growing citronella grass outdoors?

A: Citronella grass is a natural mosquito repellent, making it an effective way to control pests without using chemicals. Its strong essential oils may also filter harmful pollutants and improve air quality.

Q: Is citronella grass safe for pets? A: Citronella grass is generally considered safe for humans, but it can cause mild gastrointestinal problems in cats, dogs, and horses if ingested.

Q: Can citronella grass be grown in any type of soil? A: Citronella grass can grow in a variety of soil types, provided the soil is well-draining and has good moisture retention.

Q: Is citronella grass frost-resistant? A: No, citronella grass is not frost-resistant and should be protected during cold weather to prevent damage to the plant.

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