Which ferns don't take over a garden space?
My experience with ferns is very limited. I only have Japanese Painted Ferns, which expand slowly in my garden. I rarely find one popping up uninvited in a different area.
When I was a child my mother's ferns were always popping up under the asphault in the driveway. She put salt on them. My neighbor had the same problem. I have a small garden at our summer cabin, and one fern has popped up and wants to take over. It spreads by way of woody runners.
I would like to add some ferns to my hosta garden which "behave" well like the Japanese Painted fern.