While catnip is the most well-known herb that cats respond to, there are several other herbs that can have a similar effect on cats. Here are some alternative herbs that cats may respond to similarly to catnip:

1. Silver vine: Silver vine is a plant that is native to Asia, and it has been used for centuries as a natural remedy for a variety of ailments. Like catnip, silver vine contains a compound called nepetalactone that is thought to be responsible for its stimulating effect on cats. Silver vine is often sold in the form of dried sticks or powder, and it can be offered to cats in the same way as catnip.
2. Valerian root: Valerian root is an herb that has been used for centuries as a natural sedative and relaxant. While it may seem counterintuitive to offer a sedative to a cat, valerian root can actually have a stimulating effect on some cats, similar to catnip. Valerian root is often sold in the form of dried root or powder, and it can be offered to cats in the same way as catnip.
3. Honeysuckle: Honeysuckle is a flowering plant that is native to Asia, and it is often used in traditional medicine to treat a variety of ailments. Like catnip, honeysuckle contains compounds that can have a stimulating effect on cats. Honeysuckle is often sold in the form of dried wood or powder, and it can be offered to cats in the same way as catnip.
4. Tatarian honeysuckle: Tatarian honeysuckle is a species of honeysuckle that is native to Asia and Europe. Like other honeysuckles, Tatarian honeysuckle contains compounds that can have a stimulating effect on cats. Tatarian honeysuckle is often sold in the form of dried wood or powder, and it can be offered to cats in the same way as catnip.
5. Lemongrass: Lemongrass is a plant that is native to Asia, and it is often used in cooking and traditional medicine. While lemongrass doesn’t contain the same compounds as catnip, some cats may still respond to its scent. Lemongrass is often sold in the form of dried leaves or essential oil, and it can be offered to cats in the same way as catnip.

In summary, there are several alternative herbs that cats may respond to similarly to catnip. While the effectiveness of these herbs may vary from cat to cat, they can provide a safe and natural way to stimulate and entertain your feline friend. It’s always important to do your research and to consult with a veterinarian if you have any concerns about your cat’s health or behavior.