The Shaggy Shield Fern plant grows to be 2-3 ft. tall and the fronds are stiff and leathery with a dark green color. The Shaggy Shield Fern plant is semi-evergreen in nature, this fern prefers moist conditions and shade. The fronds of the Shaggy Shield Fern plant are stiff and leathery with a dark midrib. The Shaggy Shield Fern plant thrives well even on cold landscapes.