🌿 The garden, an ecosystem to balance
In permaculture, the goal is not to eliminate "pests" at all costs, but to promote a natural balance. Some plants play a valuable role in protecting crops by repelling unwanted insects or diverting them. Thanks to their scents, volatile substances, or attractive power, they become true allies, as useful as they are beautiful.
Here is a selection of repellent plants that you can easily sow at home, all available in our shop, along with tips for integrating them well into your garden or balcony.
🐜 1. Against aphids
🌸 Dwarf nasturtium
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Effect: attracts aphids which then leave your tomatoes or zucchinis alone. This is called a "trap plant."
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Where to sow it: on the edge of the vegetable garden, at the base of tomatoes, or among the squashes. It is also edible and very decorative.
🌼 Marigold
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Effect: repels aphids, whiteflies, and nematodes thanks to its roots and scent.
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Ideal association: tomatoes, lettuces, eggplants, potatoes.
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Benefit: attracts pollinators while protecting the soil.
🌿 Pennyroyal mint
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Effect: its scent repels aphids and ants.
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Cultivation: preferably in a pot, as it spreads and can become invasive.
🦟 2. Against mosquitoes
🌿 Lemon basil
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Effect: the lemon scent of its leaves repels mosquitoes.
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Where to place it: planter box, windowsill, outdoor dining area.
🌿 Lavender
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Effect: very effective against mosquitoes, it also perfumes the air.
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Tip: sow in spring, sunny exposure, and well-drained soil.
🌼 Calendula
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Effect: in addition to its antifungal properties, it is slightly repellent to certain insects.
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Bonus: attracts hoverflies, formidable predators of aphids.
🧑🌾 3. Winning associations in the vegetable garden
Integrating repellent plants into your crops allows you to naturally reduce insect attacks:
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Tomato + lemon basil + marigold: stimulates growth, repels pests, and attracts pollinators.
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Zucchini + nasturtium: beautiful decorative synergy while distracting aphids.
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Bean + lavender + calendula: rustic, useful, and colorful trio.
💡 Tip: sow your flowers in a staggered pattern between vegetable rows for better protection.
🌱 4. Sowing and maintenance
📅 When to sow?
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Nasturtium, marigold, calendula: from April outdoors or under cover from March.
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Basil, lavender: from March in warm pots, or outdoors from May.
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Mint and lavender: direct sowing possible, but better success in pots.
🌿 Maintenance tips
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Pinch off faded flowers to prolong blooming.
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Water moderately to avoid fungal diseases.
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Grow some species in pots to move them as needed (lavender, basil, mint).
⚠️ 5. Diversion ≠ failure
Warning: repellent plants do not all have the same effect, and their effectiveness depends on the context. For example, nasturtium attracts aphids... but this is not a flaw, it is a diversion strategy that protects your tomatoes!
Ideally, combine these plants with flowering hedges, companion plants (such as borage or dill), and vary species to maximize biodiversity and garden balance.
🌸 Conclusion
Sowing repellent plants means gardening with intelligence and respect for nature. These plants decorate, protect, perfume... and allow you to reduce or completely avoid insecticides. It’s good for you, your crops, and the planet.
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