Two of our California natives are Maiden Hair ferns and 5-Fingered ferns. They snuck in through the windows and invaded my greenhouse coming up in every pot in there.
I moved to Reno 3 years ago and the ferns continue to pop up here and there. I also had a Bear Paw fern (Polypodium) that was huge - I left it behind.
But this summer, 3 years later, I have baby Bear Paw ferns coming up in the cactus pots.
Spore storage is not a problem.
