Some of the plants that I grow and my cats like to eat are:

- Most grasses (as long as they are not too course, Bamboo grass, Cat grass)
- Catmint and Mints (loves moist, warm climate)
- Rosemary is a favourite (loves dry, warm climate)
- Thyme (loves medium-dry, warm climate)

Fortunately most of these are very easy to grow, and in fact you should keep an eye on mint as it can become a pest (although a nicer pest than weeds ) I wouldn't use any growing aids like fertilisers with plants your cats are going to eat - unless you make them inaccessible for a day after application.

Sometimes the cats even leave me some to cook with!