Ummm... I don't know where in Indiana you live, but there is a big difference between a frost and a foot of snow. I bring mine in in the winter, take it out in the summer. Yes, it can take a frost, but not necessarily 3 months of freezing weather. My little "bonsai" rosemary provides the entire block with rosemary (it just happened to grow into a bonsai-looking shape), but he definitely comes in before Christmas. My sage comes back every year, but isn't viable in the coldest winter months, so I cut it back and cover it in mulch. I have had bad luck drying it in recent years. But I have tons that come back every spring, two varieties. Right now my parsley is still looking good, but that will only last another week or two. The mint is still going strong, so much so that I had to go out and pull it out of every place it wants to move into. But again, experience tells me that it will be dead in another week or two (not dead, just in hibernation). My chives are gone for the year, but they will be back, as will my lemon balm. But my experience is that I take the rosemary in for the worst of the winter months. We sometimes get below freezing temps for weeks on end, and it can't take it. There is a big difference between northern and southern Indiana.
