Summer is a season of sunshine, outdoor fun, and relaxation—but it also brings one major downside: mosquitoes.
If you’re like me, the sight (and sound) of these pesky insects buzzing around is enough to ruin any outdoor gathering.
And when they bite, leaving behind itchy, irritating marks that seem to last forever, it’s hard not to wonder, “Why are they so annoying?” Thankfully, there’s a natural solution to this problem: lemongrass.
Planting lemongrass in your backyard not only adds a fresh, citrusy flavor to your dishes but also acts as a natural mosquito repellent.
Scientific studies have shown just how effective lemongrass can be in keeping these pests at bay.
But before we dive into its mosquito-repelling properties, let’s take a closer look at this remarkable plant.
What is Lemongrass?
Lemongrass (Cymbopogon citratus) is a tall, perennial grass native to Asia, Australia, and Africa.
Known for its long, slender stalks and earthy, citrus-like aroma, lemongrass has been used for centuries in culinary and medicinal applications.
It was first discovered in Sri Lanka but has since become a staple in many Asian cuisines and traditional medicines.
The plant can grow up to ten feet tall, with its softer inner cores often used in cooking. When grilled or roasted, lemongrass adds a refreshing, citrusy flavor to dishes.
Beyond its culinary uses, lemongrass is also valued for its medicinal properties, particularly in treating infections like malaria and tuberculosis.
How Lemongrass Repels Mosquitoes
Lemongrass is a natural mosquito repellent, thanks to its high concentration of citronella, a key ingredient found in many commercial mosquito-repellent products like candles and lotions.
Research has shown that citronella is highly effective at keeping mosquitoes away, making lemongrass a must-have plant for your yard.
The Science Behind Citronella
Citronella works by masking the scents that attract mosquitoes, such as carbon dioxide and lactic acid, which humans naturally emit.
The essential oil in lemongrass contains compounds like citronellal, geraniol, and citronella, which are known to repel insects.
A study published in the Journal of Parasitology Research found that citronella oil was effective at repelling mosquitoes for up to three hours, with 100% mortality recorded within 18 minutes of exposure.
While its effectiveness decreases over time, citronella remains one of the most popular natural mosquito repellents.
How to Use Lemongrass for Mosquito Control
Planting lemongrass in your yard is an excellent way to deter mosquitoes. You can also crush the leaves and rub them on your skin for added protection.
Alternatively, place crushed lemongrass in small bowls around your home or use an oil diffuser to release its fragrance.
The refreshing, lemony scent will help keep mosquitoes at bay while adding a pleasant aroma to your outdoor space.
How to Plant Lemongrass to Repel Mosquitoes
Lemongrass is a hardy plant that thrives in warm, sunny conditions.
Whether you’re starting from seeds or propagating from store-bought stalks, here’s a step-by-step guide to growing lemongrass in your yard:
Timing
For the best results, start your lemongrass seeds or propagate roots in late winter. Transplant the plants outdoors only after daytime temperatures consistently reach above 50°F (10°C).
Starting from Seed
- Prepare the Soil: Use rich, organic soil and press the lemongrass seeds about 1/4-inch deep. Avoid burying them too deeply, as this can hinder germination.
- Create a Mini Greenhouse: Cover the seeds with a plastic dome or wrap to retain moisture and warmth.
- Wait for Sprouts: Lemongrass seeds typically germinate within 5 to 20 days. Once sprouts appear, remove the cover and place the seedlings in a sunny spot.
Propagating from Stalks
- Purchase Fresh Stalks: Look for fresh lemongrass stalks at your local grocery store or ethnic food market.
- Trim and Prepare: Cut off the top few inches of the stalks and place them in a shallow glass of water. Change the water daily.
- Wait for Roots: After a few weeks, tiny roots will begin to form at the base of the stalks. Once the roots are mature, transfer the stalks to pots with well-draining soil.
Growing Tips
- Sunlight: Lemongrass thrives in full sun, so choose a spot that receives at least 6 hours of sunlight daily.
- Watering: Keep the soil moist but not waterlogged. Water 2-3 times per week, increasing frequency during hot weather.
- Transplanting: If growing in pots, transplant lemongrass into larger containers as it grows. For outdoor planting, ensure the soil is well-draining and enriched with organic matter.
Harvesting
Harvest lemongrass by cutting the stalks at least 1/2-inch thick. Use the fresh stalks in cooking or crush them to release their mosquito-repelling oils.
Other Benefits of Planting Lemongrass
Beyond its ability to repel mosquitoes, lemongrass offers a host of other benefits:
- Anti-Inflammatory Properties: Lemongrass contains compounds like citral and geranial, which help reduce inflammation and ease pain.
- PMS Relief: Lemongrass tea can help alleviate symptoms of PMS, such as cramps and bloating.
- Headache Relief: The eugenol in lemongrass acts similarly to aspirin, helping to relieve headaches and migraines.
- Stress Reduction: The aroma of lemongrass has been shown to reduce anxiety and stress levels, making it a great addition to your relaxation routine.
Additional Mosquito-Repelling Tips
While lemongrass is a powerful mosquito deterrent, combining it with other strategies can enhance your yard’s protection:
- Keep Your Lawn Short: Mosquitoes thrive in tall grass, so regular mowing can help reduce their numbers.
- Eliminate Standing Water: Stagnant water is a breeding ground for mosquitoes. Regularly change bird bath water and empty containers that collect rainwater.
- Plant Companion Plants: Mint, garlic, and basil are also known to repel mosquitoes.
- Invite Bats: A single bat can eat over 1,000 mosquitoes per hour. Install a bat house to encourage these natural predators to visit your yard.
- Use Fans: Mosquitoes are weak fliers. Strategically placed fans can create a breeze that keeps them away.
The Bottom Line
If you’re tired of battling mosquitoes every summer, planting lemongrass is a natural, effective solution.
Not only does it repel these pesky insects, but it also offers numerous health benefits and adds a refreshing citrus aroma to your outdoor space.
Combine lemongrass with other mosquito-repelling strategies, and you’ll be able to enjoy your yard all summer long—without the itch!
