Yes, there are several other plants and herbs that can have a similar effect on cats as catnip. These plants contain compounds that act on the cat’s olfactory system and can cause various behavioral responses. Here are some of the plants and herbs that have similar effects on cats:

1. Valerian root: Valerian root is an herb that is commonly used for its calming effects on humans. However, it can have the opposite effect on cats, causing them to become hyper and playful. Valerian root contains actinidine, which has a similar effect on cats as nepetalactone in catnip.
2. Silver vine: Silver vine is a plant that grows in Asia and is closely related to kiwi fruit. Like catnip, silver vine contains nepetalactone, which can cause cats to become playful and euphoric.
3. Honeysuckle: Honeysuckle is a flowering plant that is commonly used in gardens and landscaping. Some cats are attracted to the scent of honeysuckle, which can cause them to become playful and happy. Honeysuckle contains a compound called nepetalactone, which is also found in catnip.
4. Tatarian honeysuckle: Tatarian honeysuckle is another flowering plant that is similar to honeysuckle. Like honeysuckle, some cats are attracted to the scent of Tatarian honeysuckle, which can cause them to become playful and happy.
5. Matatabi: Matatabi, also known as silver vine, is a plant that is native to Japan and China. It contains actinidine, which can have a similar effect on cats as nepetalactone in catnip. Matatabi is often used as an alternative to catnip for cats that are not responsive to catnip.
6. Cat thyme: Cat thyme is a plant that is related to the thyme plant that is commonly used in cooking. It contains a compound called thymol, which can act as a stimulant for some cats. Cat thyme can be used as an alternative to catnip for cats that are not responsive to catnip.

In conclusion, there are several plants and herbs that have similar effects on cats as catnip. These plants contain compounds that act on the cat’s olfactory system and can cause various behavioral responses. However, it’s important to remember that not all cats will be responsive to these plants, and some cats may have adverse reactions to them. As always, it’s important to supervise your cat when giving them any new plants or herbs and to consult with a veterinarian if you have any concerns about your cat’s health or behavior.

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