Description

A copper collar used around plants in the soil is an effective, low-maintenance method for repelling slugs and snails. The collar, typically made of copper wire or mesh, is placed around the base of a plant, embedded slightly into the soil. When slugs or snails attempt to cross the collar, they encounter the copper material, which triggers a mild electrical reaction with the mucus the slugs secrete. This creates an uncomfortable “shock” that discourages the slugs from moving past the copper barrier and reaching the plant.

The collar functions as a physical and chemical deterrent. The copper doesn’t just provide an electrical charge, but also has antifungal properties that may discourage the growth of molds and other pathogens, further benefiting plant health. The slugs’ sensitive bodies are repelled by this reaction, making them more likely to stay away from the area.

Copper collars are especially effective in moist environments, where slugs thrive. Since they are installed directly in the soil, they also protect the plant’s root zone, preventing slugs from burrowing into the soil and attacking the roots. These collars are a natural, chemical-free solution to slug problems, offering long-lasting protection as they’re not easily damaged by rain or watering, though over time, the copper may tarnish.

While copper collars aren’t a 100% guarantee to keep all slugs away, they provide a reliable and non-toxic way to create a protective barrier around vulnerable plants, reducing the need for chemical slug repellents.