With the mercury dropping and natural food sources dwindling, January marks a peak period for unwanted garden pests, particularly rodents like mice, seeking warmth and sustenance in British homes.
Why Rodent Activity Surges in Winter
Specialists at Pests UK warn that the cold weather drives rats and mice to seek shelter. They are frequently drawn to warm compost heaps and the sheltered spaces beneath porches to nest. The problem can escalate quickly, as a female mouse typically produces around six litters annually, with each litter containing between six and 13 offspring.
Both species are also attracted by food left out for birds, such as seeds and nuts, which provide vital protein during the colder months. Fantastic Pest Control highlights the particular threat mice pose indoors, where they can gnaw through furniture, walls, and even electrical cables, creating a fire hazard.
Three Natural Plant Deterrents
Beyond traditional methods like blocking entry points and using traps, experts point to three plants whose scents are known to repel mice: eucalyptus, lavender, and mint.
1. Eucalyptus: The Safe and Effective Choice
Considered the safest and most proven option, eucalyptus can be used to create a simple deterrent spray. Homeowners can mix two teaspoons of eucalyptus oil with water and a couple of drops of detergent. This solution should be sprayed in areas with a high chance of mice entering, such as drains, wall cavities, and along skirting boards. For optimal results, specialists recommend repeating the process weekly.
2. Lavender: A Dual-Purpose Solution
Incorporating lavender not only helps minimise mouse problems but is also renowned for alleviating stress and improving sleep quality. The method is simple: apply 8 to 10 drops of lavender oil to cotton wool balls and place them near potential entry points. Replace them once the scent fades.
3. Mint: A Potent and Prolific Herb
Mint, particularly spearmint (mentha spicata), is another effective deterrent. Place small containers of the plant around your property, or if you have outdoor space, grow your own mint plants to create a natural barrier against rodents.
Additional Natural Methods and Cautions
Garlic is also cited as a natural mouse repellent, though it is reported to be less effective in large, open areas and requires regular replacement. Cloves can be placed at suspected entry points, or a garlic-water spray can be used. However, experts issue a strong warning: garlic is seriously harmful to pets like cats and dogs and should be used with extreme caution in households with animals.
As January proves to be a slow month for insect pests but a busy one for rodents, these plant-based strategies offer homeowners a fragrant and natural first line of defence against winter invasions.
