What is your favorite frangrant plant from zone 7 and colder
There is one similar thread, but those guys in tropical areas are just too lucky. They have endless choices for fragrant plants.
Now, please list your favorite plants for zone 7 and colder. Indoor plants are OK, but they have to be easy to grow. For instance, Gardenia is not eligible as it is too hard to grow indoor, and it does not do well outdoor for zone 7 and colder.
If you decide to list indoor plants that most of us don't know much about, please kindly tell us your successful stories (growing tips).