Ever tried to enjoy chai on your veranda, only to spend the whole time swatting away mosquitoes? Si rahisi. This list is about ten common plants that naturally keep those pesky insects away from your backyard.
We’ll look at local favourites you can easily find and grow, saving you money on sprays and making your outdoor space more peaceful for family time and barbecues.
What Makes This List
We didn’t just pick any plants. This list focuses on ones that actually work against our common pests like mosquitoes and flies, and that you can realistically grow here in Kenya. We considered availability at local nurseries, ease of care in our climate, and how you can use them—whether in pots, as a border, or even for cooking. These are proven, practical choices for your shamba or backyard.
1. Mwarubaini (Neem Tree)
This is the ultimate natural insecticide. Its leaves contain azadirachtin, a compound that disrupts the life cycle of pests. Crushing the leaves and steeping them in water creates a powerful spray that repels mosquitoes, flies, and even treats garden pests.
Known as the “village pharmacy,” many rural homesteads have one for its medicinal uses. You’ll find neem oil and soaps in local markets like Gikomba or even supermarkets, proving its trusted status in Kenyan pest control.
Plant a tree if you have space, or buy neem oil to mix your own repellent spray for plants and skin.
2. Msumari (Mexican Marigold)
Those bright orange and yellow flowers do more than beautify. They emit a strong scent that deters mosquitoes, whiteflies, and even nematodes in the soil. It’s a companion plant that protects your vegetables.
It’s a common sight in urban flower beds and rural shambas alike. Many Kenyans call it “msumari” and use it to border vegetable plots, especially around tomato plants to keep pests away naturally.
Plant these around the edge of your garden or in pots near doorways to create a fragrant insect barrier.
3. Lemongrass
This is the plant that gives citronella oil its famous mosquito-repelling power. The strong citrus scent masks the smells that attract mosquitoes, making it a living, growing alternative to chemical coils.
You can buy a seedling for as little as KES 50 from a roadside nursery. It thrives in our sunny climate and you can use the stalks for tea or cooking, making it a doubly useful plant for your kitchen garden.
Crush a few leaves and rub them on your skin when sitting outside in the evening for instant, natural protection.
4. Rosemary
This hardy herb’s pungent aroma is a turn-off for mosquitoes, cabbage moths, and carrot flies. It’s a drought-resistant plant that grows well even when water is scarce, offering consistent protection.
Perfect for our sometimes dry Kenyan climate, rosemary does well in pots on a sunny balcony in estates like Kilimani or in garden beds in drier areas like Kajiado. It’s also great for roasting nyama choma!
Prune it regularly to encourage bushy growth and release more of its insect-repelling oils into the air around it.
5. Lavender
While humans love its calming scent, mosquitoes, moths, and flies absolutely hate it. The plant’s essential oils are a natural deterrent, and dried lavender can protect clothes from insects.
With more flower farms in Naivasha growing lavender commercially, it’s becoming easier to find plants locally. It adds a beautiful purple hue to your garden while working hard to keep bugs away.
Place dried lavender sachets in your wardrobes and linen cupboards to keep moths at bay without using mothballs.
6. Sukuma Wiki (Collard Greens/Kale)
This might surprise you, but planting sukuma wiki can help. Its strong smell can confuse and repel certain pests from more vulnerable plants. It acts as a sacrificial trap crop for aphids.
In the typical Kenyan kitchen garden, intercropping sukuma wiki with other vegetables is a smart, traditional practice. It maximizes space and offers some pest protection while guaranteeing your daily greens.
Use it as a border plant around your prized cabbages or spinach to draw pests away from them.
7. Mint (Pudina)
Mint’s vigorous growth and strong menthol scent are excellent for repelling ants, mosquitoes, and even mice. It spreads quickly, creating a dense mat that insects avoid crossing.
Be careful where you plant it—it can take over like a weed! Many urban gardeners in Nairobi keep it in a separate container. Fresh mint is also essential for that perfect cup of chai.
Always grow mint in a pot or a sunken container to control its spread and place it near outdoor seating areas.
8. Garlic
Planting garlic around your garden does more than provide cloves for cooking. Its sulphur compounds seep into the soil and are absorbed by other plants, giving them a mild pest resistance.
You can buy garlic bulbs from any local market or supermarket. In regions like Molo known for vegetable farming, intercropping with garlic is a common, chemical-free pest management strategy.
Plant garlic cloves among your roses or other flowers to help protect them from aphids naturally.
9. Lantana Camara
This tough, flowering shrub is often seen growing wild, and its distinct smell is highly effective at keeping mosquitoes away. It blooms year-round with clusters of colourful flowers.
While it’s common and grows easily in many parts of Kenya, be aware it’s considered an invasive species in some areas. Always check with Kenya Plant Health Inspectorate Service (KEPHIS) guidelines for your region before planting.
If it’s suitable for your area, grow it as a decorative and functional hedge to mark your property boundary and repel insects.
10. Pyrethrum (Chrysanthemum cinerariifolium)
This is where many commercial insect sprays originate. The flowers contain pyrethrins, which are natural insecticides that target insects’ nervous systems but are low in toxicity to mammals.
Kenya is one of the world’s top producers of pyrethrum, mainly in the highlands of Nakuru County. Supporting this local industry by growing a few plants connects you to a major agricultural export.
Dry the flower heads, crush them into a powder, and sprinkle it around entry points to deter ants, roaches, and fleas.
Turning Your Backyard Into a Bug-Free Zone
You don’t need expensive chemicals to enjoy your outdoor space. As you’ve seen, many plants you already know and use can double as your garden’s natural security team against insects.
Start small. Visit your nearest plant nursery or even the plant section at a market like City Market in Nairobi. Pick two or three of the easiest plants, like lemongrass and mint, and plant them in pots or along your fence line. You can also check with the Kenya Agricultural and Livestock Research Organization (KALRO) for more localized planting advice.
Taking these simple steps now means you and your family can relax outside any evening, without the constant buzz and bite of mosquitoes.
The Bottom Line
Protecting your home from insects doesn’t have to be complicated or costly. By choosing the right plants, you can create a beautiful, fragrant, and functional backyard that works for you. It’s about working with nature, not against it, using solutions that are already part of our environment.
This weekend, take a walk to your local nursery, pick a plant from this list, and start your journey to a more peaceful, bite-free outdoor space. Your next barbecue will thank you.
Frequently Asked Questions: 10 Proven Insect Repelling Plants for Your Backyard in Kenya
Which plant on the list is the easiest for a beginner to start with?
For a total beginner, lemongrass or mint are your best bets. They are very easy to find, cheap to buy as seedlings, and grow quickly with minimal fuss.
You can start them in a pot on a balcony or windowsill. They give you fast results, which is encouraging when you’re just starting your natural pest control journey.
Are some of these plants considered invasive in Kenya?
Yes, this is an important point. Lantana Camara, while effective, is a known invasive species in many parts of the country. It can spread aggressively and harm local biodiversity.
Always check with your county agricultural office or KEPHIS before planting it. They can advise if it’s a problem in your specific area and suggest good alternatives.
Can I really rely on these plants alone to control mosquitoes?
For best results, use these plants as part of a broader strategy. They are excellent deterrents but work best alongside other measures like clearing stagnant water.
Think of them as your first line of defence. Combine them with well-fitted window screens and wearing long sleeves in the evening for maximum protection, especially in high-risk areas.
Where can I get reliable advice on growing these in my specific county?
Your local agricultural extension officer is the best free resource. Every county has these officers who understand the local soil, climate, and pest challenges.
You can find their contact details at your sub-county administration office. They can give you tailored advice that generic online guides cannot.
Is it safe to use these plants around children and pets?
Generally, yes, as they are natural. However, it’s wise to teach children not to eat any garden plants. Some, like certain mint varieties, can cause stomach upset if ingested in large amounts.
Always supervise young children and pets in the garden. The goal is a safe, chemical-free environment for the whole family to enjoy.
