Nepeta cataria is the one known as catnip (catcrack is my preferred term after the havoc wreaked by our neighbour's cat when we wrapped him up a packet of dried stuff for Christmas, and the neighbours left it under the Christmas tree
).
The others are, I think, catmint - but I'm not sure if they still attract cats, are less appealing to them, or not at all...?
For 89p though, definitely worth a go!