Lavender Plants And Cats. Planting a bit of lavender between your other plants is an ideal way of stopping cats from wondering into your garden. Cats are jumpers, but if the bush blocks their line of sight as the taller lavender plants do, they are not as curious.
To humans the scent of lavender is wonderful, but to cats, it smells like death. Keep the mulch away from the crown of the lavender plant, however, to prevent excess moisture and root rot. These substances can cause gastrointestinal upset in your cat.
Even though this plant is a definitely part of the mint family, it is also one of the smallest members.
Occasionally though you may find a cat will come along that likes the smell of lavender. While lavender oil may be used to help with any pain and swelling experienced in an allergic reaction, in some cases an allergy will occur to the pollen or the oil of the lavender plant. To humans the scent of lavender is wonderful, but to cats, it smells like death. Most of the smells that are pleasant to us, including citrus smells, cats tend to hate.