Polystichum tsus-simense (Korean Rock Fern)

Polystichum tsus-simense (Korean Rock Fern)

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Korean Rock Fern or Tsu-sima Holly Fern, is a herbaceous evergreen.  It is a creeping, crown forming rhizome.  It prefers wet or evenly moist soil. Plant in humus-rich soil in partial to full shade.  It prefers cool temperatures. Korean rock ferns an excellent choice for protected areas outdoors where few other plants will survive. Indoors, these ferns can grow in less light than other common houseplants.  Being small, clump-forming plants, they do not require frequent repotting and can be grown with similarly sized plants that have similar cultural requirements. Forced air vents, fans, and cold drafts should be avoided. These ferns prefer bright indirect light, but can acclimate to full sun in cooler conditions. Korean rock ferns can also grow, but not thrive, in dimmer lighting where they will maintain their color, but show very little growth.