Seeds from this Asperagus meyeri Foxtail Palm. An evergreen arching perennial that has feathery, needle-like, stems. Foxtail Fern is thought of as a fern but it is not a true fern, as it produces seeds rather than spores. The plant can grow 2 feet in height and to a width of 3 to 4 feet in zones 9-11. Part and full shade.