Slugs and snails can be a real nuisance in the garden, but these natural pest control plants can help keep them at bay without the need for harsh chemicals08:40, 30 Jun 2026It's every gardener's nightmare to discover snails and slugs wreaking havoc on their precious plants, but there's no need to turn to harsh chemical solutions when nature offers its own defences.‌These ravenous little creatures mean no harm, but they're instinctively attracted to certain plants, and particularly relish munching through salad leaves and basil.‌Yet just as some plants draw them in, others can work to repel them, serving as a natural barrier without the need for strong chemicals in your outdoor space.‌With the proper selection, you can cultivate a colourful garden that's both appealing and better protected against unwanted visitors. Snails especially possess a keen sense of smell, according to Plantura Magazine, which means various herbs can actually repel them thanks to the powerful scent of their essential oils.By growing these, you'll not only be warding off the tiny intruders but also introducing fresh and delightful fragrances to your garden for your own enjoyment.LavenderThere's a good reason it's so beloved, and that's down to its wonderful scent, which creates a soothing and natural atmosphere, making it a favourite in the wellness community. The gardening experts at Plantura say its potent aroma is what helps keep snails away, and it's also been known to deter moths, fleas, and mosquitoes.‌Lavender is said to be particularly effective when planted along paths or borders, though it thrives best in sunny spots. It's also an incredibly low-maintenance plant, requiring very little effort and, regardless of your gardening experience, can be kept in great shape with ease.MarigoldsMarigolds are a fantastic addition to any garden, not only for their striking, vivid colours but also for their ability to ward off all manner of pests. This is thought to be down to a compound they contain called 'pyrethrum', which acts as a natural insecticide and is especially useful when planted alongside vegetables such as tomatoes or courgettes.‌On top of being straightforward to grow, they also tend to flower for months at a time, offering a fuss-free solution for your flower beds.RosemaryRosemary serves as a highly effective natural repellent, as slugs typically can't stand its powerful, pungent aroma combined with its bitter taste. While it won't eliminate an existing infestation, it does create a reliable barrier to shield vulnerable plants from harm.What's more, the thick, waxy texture of rosemary's leaves, coupled with its intense piney scent, makes it difficult for slugs to crawl across in the first place.‌DaffodilsDaffodils are the quintessential spring bloom, boasting vivid colours while also proving highly effective at warding off insects, thanks to their alkaloid properties. They are equally a low-maintenance plant that returns season after season, requiring very little attention from gardeners.Garden specialist Doug O'Connor from DeerFencing explained: "Natural pest control doesn't have to be complicated. These four flowering plants are widely available across the UK, require little maintenance, and add colour as well as protection to your outdoor spaces.Article continues below"Rather than relying on harsh sprays, which can harm pollinators and disrupt ecosystems, using companion planting gives gardeners a sustainable way to manage pests. It's a win-win for biodiversity and your borders."