Four plants that 'repel' rats and 'keep them at bay' - and they're all easy to grow

Black rat (Rattus rattus) searching food in the forest
Rats can be repelled. -Credit:(Image: Getty)

Rats will 'scurry away immediately' from your garden if you grow four of their 'nemesis' plants. Rat infestations in gardens can be extremely frustrating, and the first thing most people will turn to is poison or bait.

If you would prefer a more natural and safe, yet effective, option to prevent a rodent problem in your garden, then consider growing certain plants that deter rats and other unwanted pests.

Pest control experts at Buzz Boss have shared four plants that "add charm" to your garden and "serve as formidable allies in your battle against rats" as they "repel" and "keep them at bay".

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1. Lavender.

Lavender is a fragrant herb famous for its soothing and relaxing properties, but it's also a "great rat repellent", as it has a strong and pleasant scent that "rats dislike", reports the Express.

Lavender contains essential oils that act as "natural repellents for rats and other pests", such as mosquitoes, flies, and moths.

This perennial plant can grow up to 60 cm tall with grey-green leaves and purple-blue flowers that bloom from late spring to early summer.

It can be planted in pots, borders, or beds and can also be used as a hedge or a ground cover.

2. Onion.

This cooking staple is "a nemesis of rats", according to the experts. They said: "It's a powerful rat repellent because of its pungent smell and taste."

The experts highlighted that onions contain sulphur compounds which irritate the eyes and nose (of rats as well), and allicin, which can lead to anaemia and oxygen deprivation in rats if consumed.

Onions are a cool-season crop that can be cultivated from seeds, sets, or transplants. They thrive in full sun and rich, moist soil.

Harvesting can take place when the bulbs are fully formed and the tops begin to yellow and fall over. The bulbs can be stored in a cool, dry, and dark place for several months.

3. Chrysanthemums.

Chrysanthemums are stunning flowers available in a range of colours and shapes. They also serve as "effective rat repellents" due to their "high pyrethrin content", a natural insecticide that impacts the nervous system of rats and other pests.

Pyrethrin is found in the yellow centres of the flowers, so opt for varieties with prominent disks.

Chrysanthemums are "super easy to grow" and need full sun and well-drained soil. They bloom from late summer to autumn and can be planted in borders, containers, or beds.

To maintain these flowers' health, water them regularly, fertilise them once a month, and prune them after flowering.

4. Black pepper.

This spice is a powerful rat repellent. Black pepper contains piperine, a compound that "stimulates the pain receptors of rats and other mammals, causing them to sneeze, cough, and scurry away immediately".

Black pepper is a tropical vine that can grow up to four meters long. It has glossy green leaves and small white flowers that produce green berries that turn red when ripe.

These berries are dried and ground to make black pepper.

Black pepper needs warm and humid conditions, partial shade, and rich, moist soil. It can be grown in pots, trellises, or greenhouses and can be harvested when the berries are fully developed.