Polystichum tsus-simense – Dwarf Holly Fern – Korean Rock Fern – Shield Fern –

Description

Polystichum – Shield Fern – There are about 200 species of usually evergreen, terrestrial ferns in this genus. They occur in a range of habitats, from alpine cliffs to tropical forest worldwide. They are grown for their often lance shaped, pinnate to 3 pinnate fronds, which arise from erect or short creeping rhizomes, usually in shapely, shuttlecock crowns. The pinnae are sometimes lobed, each lobe ending in a sharp point or bristle. Sori are borne on the undersides of the fronds, each usually protected by a rounded indusium. Grow in a rock garden, fernery, or well drained border, or as a groundcover in woodland setting. Grow in fertile, humus rich, well drained soil in deep or partial shade. Remove dead fronds before new ones unfurl. Divide in spring. P. tsus-simense – Dwarf Holly Fern – Korean Rock Fern – This terrestrial, evergreen fern from Eastern Asia grows 16″ tall and wide. It produces shuttlecocks of broadly lance shaped, 2 pinnate, dark green fronds, 8-16″ long. The narrow, ovate to oblong-ovate, spiny toothed pinnate are sharply and abruptly pointed. Zones 6-9