It is a robust, leathery fern which has glossy, green fronds year-round. Christmas ferns do best in an area that receives part shade or full shade, although they will tolerate some sun. Plant the ferns after the last frost, placing them 18 inches apart and deep enough to hold the roots without crowding.
http://ontarioferns.com/main/species.php?id=4003
https://www.wildflower.org/plants/result.php?id_plant=poac4
https://www.gardeningknowhow.com/…/…/christmas-fern-care.htm
