We have basil & mint as well as other herbs growing in pots outside on our window ledges. The cats ALL of them like to chew on the basil and just rub & sometimes lick the mint. It was so funny the first time. They also got mad for lemon balm which is also part of the mint family. There is a tea here my husband drinks called tisana 'relax' and it contains lemon balm. Every now and then I will give the cats a pouch with the tea bag still sealed inside and it is better than any catnip toy. Guido has to be careful not to leave his tea unattended as well because on several occasions we have found a kitty with his/her head in the tea cup lapping away at it.