Any flowers that chipmunks won't eat?

Question:My grandma wants to put flowers on and aroud her patio,but there is a problem with chipmunks.They sit in the flower boxes,and munch on whatever flowers or plants she has out there.Does anybody know of any plants or flowers that they won't eat?
If somebody knows of something she can do to keep them away,that would be great too.She doesn't want to hurt them,she just wants them to not eat her flowers.

Answers:
They were digging up my garden lately and there don't seem to be any natural enemies of them near my house, so I was at a loss for how to deal with them.

Unfortunately, the only way to address the problem was to buy one of those gopher bombs from Home Depot and stick it in the network of holes they made in the garden.

http://petvetsupply.com/rodmrox001.html...