Polystichum tsussimense, also known as Korean Rock Fern, is a perennial fern that is native to Korea, Japan, and China. It is a relatively low-growing fern, typically reaching a height of 12-18 inches and a spread of 18-24 inches.
Propagation of Polystichum tsussimense is typically done through division of the plant's rhizomes. This fern can be divided in spring or early fall, with each division being planted in its own pot or in a new location in the garden.
Overall, Polystichum tsussimense is a beautiful and relatively low-maintenance fern that is a great choice for adding texture and interest to shady areas in the garden.