Osmunda fibre source or alternatives

[kenr62]

I have been using osmunda fibre for many years as a filler for orchids in cedar or teak baskets or as padding for cork bark mounts. My supply is almost gone & I can't find any suppliers. Does anyone know of a S Florida or mail order supplier/source, or in the alternative a reasonably similar alternative? I have used tree fern chunks, but they don't have the give osmunda fibre has allowing secure holding without crushing the plant.

Thanks!

Ken