Chrysanthemums are particularly interesting because they contain naturally occurring compounds called pyrethrins.

Pyrethrins have insecticidal properties and are used in some commercial insect-control products.

But don't make the mistake of assuming that simply placing a chrysanthemum pot in your home is equivalent to using an insecticide.

The amount of pyrethrins released by a living plant is not comparable to a formulated pest-control product.

Still, chrysanthemums are attractive ornamental plants and can be part of a broader garden strategy.

But What About Mice?

This is where viral posts often overstate things.

You may see claims that peppermint, lavender, or other strongly scented plants will drive mice out of your house.

There is some evidence that certain strong odors can temporarily affect rodent behavior, but relying on a potted plant to control an established mouse infestation is unrealistic.

Mice are attracted primarily by things such as:

Food

Water

Shelter

Warmth

Accessible nesting areas

If mice have access to these resources, a little mint fragrance probably isn't going to convince them to move out permanently.

The better strategy is to remove what attracts them.

The Most Effective Way to Keep Mice Out

If you're dealing with mice, focus on physical prevention.

Inspect your home for openings around:

• Pipes
• Doors
• Windows
• Vents
• Foundations
• Utility lines
• Cabinets
• Garage entrances

Even surprisingly small openings can provide access.

Seal appropriate gaps using suitable materials, and make food difficult for rodents to access.

Store food in sealed containers.

Clean crumbs promptly.