Cats dislike the smell of rue, lavender and pennyroyal, Coleus canina and lemon thyme. Plant a few of these throughout the garden.

What plant keeps cats away?

For instance, some plants emit odors that cats find offensive, such as the scaredy-cat plant (Coleus canina). Other plants often recommended for keeping cats away include rue, lavender, rosemary, and pennyroyal.

What is the most effective homemade cat repellent?

Citronella oil is a home made cat repellent that many people have had success with. Citronella is best known as a mosquito repellent, but cats find the Citronella odor to be distasteful. Simply mix one part Citronella oil to four parts water and spray liberally in the troubled areas.