Hey there, I think that the plant you are looking for is not really a fern, but is Asparagus plumosa, which actualy grows into a kind of annoying vine, at least up in New York, where it is a house plant. It just gets very long but you have to support it somehow because it doesn't hold onto anything itself. I think I sometimes have seen it as a small plant in like Home Depot type stores, but not lately. It might have gone out of style or somethingGood luck.