It really depends. Didn't really do much for me when I attempted it. But, I guess if you work yourself up, it may kick ya.
In the anarchists cook book they were telling people you could get messed up by smoking bannana peels. They even made up a name for it, it was like Bannonil or something. Hahaha.
I smoked rosemary when i ran out of cigs one time. It didn't get me high or help with the nic fitting any.