I have two Japanese Lace Ferns [Polystichum polyblepharum] and one Dryopteris complexa 'Stableri Crisped' [Crisped Narrow Hybrid Golden-scaled Male Fern]... in individual clay pots. They have done exceptionally well this past summer.
I had planned to plant them "in ground" but they are so good looking in the pots I would like to leave them potted.
Both are hardy to zone 5... and I live in 7a.
Do you think they would survive outdoors in pots? Or could they overwinter indoors?
Your opinion would be appreciated.

They should survive in the pots but I would take precautions. If you can bury your pots in the ground that would be the best option. The ground will keep the temps a bit more stable and warmer around the pots so they can weather the extremes better. If not then against the house in a protected spot would work.

I wouldn't bring them inside since they are hardy to zone 5. Most hardy ferns require the cold chill and dormancy of winter to survive. They want that rest from growing.

Thanks for your suggestions... I apologize for taking so long to see them.
It's been a while since our initial forum entries. And up until now, my potted ferns seem to be fine. I placed the pots up against the south side of my home and water them about every 10-14 days. I have grown peonies in pots this way in past winters and the experience was a good one. Here is hoping the same is true for ferns.
I'll also be pottng some lilies I belatedly received from a grower. They, too, have done well in pots in the past.
I look back on my early years and marvel at how incredibly stupid I was. I never would have even thought of planting lilies and peonies [and alliums and roses] in pots permanently. That is one of the wonders and pleasures of gardening. If you're fortunate you learn as time passes and some of that ignorance turns into experience.