Wherever you put such a plant in your house, a rat or cockroach will never appear.

Repellent properties
Mint contains a component called menthol, which is very effective in repelling insects. Its strong, fresh smell acts as a natural repellent, keeping flies and mosquitoes at bay.

In addition, menthol is also unpleasant for mice and cockroaches, so they will avoid approaching any place where mint is present.