{"product_id":"korean-rock-fern-1","title":"'Korean Rock' Fern","description":"\u003cp style=\"font-size:1.15em;\"\u003e\u003cstrong\u003eDiscover the quiet elegance of the Korean Rock Fern — a compact, lush fern that thrives where other plants struggle.\u003c\/strong\u003e \u003cem\u003ePolystichum tsus-simense\u003c\/em\u003e, known as the Korean Rock Fern or Tsus-sima Holly Fern, is a refined, slow-growing fern with deeply lobed, glossy fronds that bring a touch of the East Asian forest floor into your home. Unlike fussier ferns, this one is remarkably tolerant of low humidity and lower light, making it an ideal choice for apartments, offices, and shaded rooms.\u003c\/p\u003e\n\n\u003cp\u003eLooking for more easy-going greenery? Explore our \u003ca href=\"\/collections\/best-easy-care-plants\" style=\"color:#2d6a4f; font-weight:bold;\"\u003ebest easy-care plants\u003c\/a\u003e or browse the full \u003ca href=\"\/collections\/shop-houseplants\" style=\"color:#2d6a4f; font-weight:bold;\"\u003ehouseplant collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"color:#1a3d2b;\"\u003e🌿 Why Plant Lovers Choose the Korean Rock Fern\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Light Champion\u003c\/strong\u003e — One of the most shade-tolerant ferns available, perfect for north-facing windows or dim corners.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity Tolerant\u003c\/strong\u003e — More forgiving than tropical ferns; doesn't require constant misting or a humidifier.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Elegant\u003c\/strong\u003e — Stays a manageable size, ideal for desks, shelves, and terrariums.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEvergreen Foliage\u003c\/strong\u003e — Maintains its glossy, dark green fronds year-round.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePet-Friendly\u003c\/strong\u003e — Non-toxic to cats and dogs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color:#1a3d2b;\"\u003e🌱 Plant Profile\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBotanical Name:\u003c\/strong\u003e Polystichum tsus-simense\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommon Names:\u003c\/strong\u003e Korean Rock Fern, Tsus-sima Holly Fern\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Dryopteridaceae\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e East Asia (China, Japan, Korea)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMature Size:\u003c\/strong\u003e 12–18\" tall and wide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrowth Rate:\u003c\/strong\u003e Slow to moderate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color:#1a3d2b;\"\u003e☀️ Care at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLight:\u003c\/strong\u003e Low to medium indirect light. Avoid direct sun.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e Keep soil consistently moist but not soggy. Water when the top half-inch feels dry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e Average household humidity is fine; higher humidity encourages lusher growth.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoil:\u003c\/strong\u003e Rich, well-draining potting mix with added peat or compost.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 60–75°F. Tolerates cooler temps better than most houseplants.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFertilizer:\u003c\/strong\u003e Light feeding with a balanced liquid fertilizer once a month in spring and summer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"background:#f0f7f4; border-left:4px solid #2d6a4f; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n  \u003cstrong\u003e🌿 Pro Tip:\u003c\/strong\u003e The Korean Rock Fern makes an excellent terrarium plant! Its compact size and love of humidity make it a perfect fit for closed or semi-open terrariums alongside mosses and small tropical plants.\n\u003c\/div\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\n  \u003ca href=\"\/collections\/shop-houseplants\" style=\"background-color:#2d6a4f; color:#ffffff; padding:14px 28px; border-radius:8px; text-decoration:none; font-size:1.05em; font-weight:bold;\"\u003eShop More Indoor Plants →\u003c\/a\u003e\n\u003c\/p\u003e","brand":"Rooted Treasures Farms","offers":[{"title":"4\" Pot","offer_id":47732045185195,"sku":"4_FERN_KOREAN.ROCK","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0142\/7371\/files\/1-Fern-KoreanRock-4.png?v=1788246614","url":"https:\/\/walnutcreekpet.com\/products\/korean-rock-fern-1","provider":"Walnut Creek Pets LLC","version":"1.0","type":"link"}