I have a maidenhair fern which appears to not be in the greatest shape (although some fiddleheads appear from time to time) and I would like to reproduce it in a vase. I've tried cutting a small piece of it and putting it in water to see if any roots grow. I later learned that this doesn't work.
But more recently I thought of gently removing its sori and powdering them on the vase, hoping that the spores develop into the prothallus which can, in turn, give origin to a new fern. Any thoughts about what I can do??