Ferns: I have a love/hate relationship with them. My greenhouse 'weeds' are 5-fingered ferns and maiden hair ferns, both CA natives. They grow like crazy - those fern spores are working overtime.
I also have a 40 year old staghorn fern. I watch all those spores develop but I have never, ever gotten an infant fern. I have even gone so far as to put flats full of 6-packs with potting soil under the plant when the spores start to fly. I end up with 6-packs full of 5-fingered and Maiden Hairs but no staghorns.
Buy a plant, it will be cheaper in the long run.
Daisy