{"product_id":"sensitive-fern","title":"Sensitive Fern","description":"\u003ch1\u003eNative-Style Shade Plant for Minnesota Woodland Gardens\u003c\/h1\u003e\n\u003cp\u003eSensitive Fern (\u003cem\u003eVarious 'Sensitive'\u003c\/em\u003e) is a fern hand-selected for the Twin Cities climate. Non-flowering. Reproduces by spores on the underside of fronds. Whether you're planting a shaded border in Minnetonka, layering a foundation bed in Plymouth, or anchoring a perennial bed in Burnsville — Sensitive Fern performs reliably in zone 4b–5a yards.\u003c\/p\u003e\n\n\u003ch2\u003eSensitive Fern Plant Details\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eScientific Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVarious 'Sensitive'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon Names\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMature Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2–4 feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMature Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2–4 feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrowth Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModerate — fully sized in 2–3 seasons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSun\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePart shade to full shade. Tolerates morning sun with adequate moisture.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConsistent moisture. Mulch deeply to retain soil moisture.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSDA Zones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3–8 (Twin Cities is zone 4b–5a)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoil\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRich, moist, organic soil. Amend Minnesota clay with compost at planting.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoliage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLush, deeply cut fronds; herbaceous (dies back in winter).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWinter Hardiness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReliable to -40°F. Among the toughest perennials for MN.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDeer Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStrongly deer-resistant.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBloom\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-flowering. Reproduces by spores on the underside of fronds.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNative Status\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMost species are native or naturalized to Minnesota woodlands\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSensitive Fern Uses in Minnesota Landscapes\u003c\/h2\u003e\n\u003ch3\u003eShade gardens under mature trees\u003c\/h3\u003e\n\u003cp\u003eFerns are the foundation of any serious Minnesota shade garden. They thrive under mature oak and maple canopies common in older Twin Cities neighborhoods.\u003c\/p\u003e\n\u003ch3\u003eRain gardens and wet clay\u003c\/h3\u003e\n\u003cp\u003eMany fern species tolerate wet clay and seasonal standing water — useful in low spots that flood after spring rains.\u003c\/p\u003e\n\u003ch3\u003eWoodland naturalization\u003c\/h3\u003e\n\u003cp\u003ePlant in drifts of 5+ for a natural, layered woodland edge.\u003c\/p\u003e\n\n\u003ch2\u003eBest Time to Plant Sensitive Fern in Minnesota\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFall (late August–early October) is the ideal planting window.\u003c\/strong\u003e Soil is still warm for root development, cool air reduces transplant stress, and the plant gets 6–8 weeks to establish roots before ground freeze (typically mid-November in the Twin Cities).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpring (late April–May) is the second-best window\u003c\/strong\u003e — the plant gets the full growing season to establish before its first winter.\u003c\/p\u003e\n\u003cp\u003eAvoid summer planting (June–August) when possible. Never plant after mid-October or before late April — frozen ground or frost-heaving kills new roots.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Plant Sensitive Fern\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDig wide, not deep.\u003c\/strong\u003e 2–3× the root ball width, same depth as the container. Heavy clay benefits from even wider digging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck drainage.\u003c\/strong\u003e Fill the hole with water — if it doesn't drain in 30 minutes, mound-plant or break through any clay hardpan to improve drainage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackfill with native soil + 20–30% compost.\u003c\/strong\u003e Minnesota clay-loam benefits from organic amendment but don't create a \"container\" of pure compost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacing.\u003c\/strong\u003e Refer to the mature width above and space accordingly. Closer for mass plantings, wider for individual specimen plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater basin.\u003c\/strong\u003e Build a 3–4 inch ring around the planting to direct water to the roots. Flatten or remove before winter to avoid ice damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulch.\u003c\/strong\u003e 2–3 inches of shredded bark or wood chip mulch, kept 2 inches away from the trunk or crown. Do NOT use gravel mulch in Minnesota — it doesn't insulate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eWatering Sensitive Fern in Minnesota\u003c\/h2\u003e\n\u003ch3\u003eFirst Year Watering Schedule\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeeks 1–2: Every 1–2 days, deep and slow (15–25 minutes per plant)\u003c\/li\u003e\n\u003cli\u003eMonth 1–2: Every 3–4 days\u003c\/li\u003e\n\u003cli\u003eMonth 3–6: Every 5–7 days during active growth; less if rainfall is adequate (Minnesota averages ~3 inches\/month June–August)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStop watering 2–3 weeks before ground freeze\u003c\/strong\u003e (typically late October in the Twin Cities metro) to avoid pushing late-season growth that gets killed by winter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAfter Year One\u003c\/h3\u003e\n\u003cp\u003eEstablished plants only need supplemental water during droughts (2+ weeks with no rain and temps above 80°F). Water deeply and infrequently — every 7–14 days during dry spells, soaking to 6–8 inches depth. Let natural rainfall do most of the work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fern survive a Minnesota winter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — hardy to zone 3. Ferns die back to the ground in winter and re-emerge as fiddleheads in spring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the fern deer-resistant?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — strongly. Deer almost universally avoid ferns.\u003c\/p\u003e\n\n\u003ch2\u003eYou May Also Like\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/all\"\u003eShop the full Three Timbers Minnesota catalog\u003c\/a\u003e — zone 4-hardy plants hand-selected for Twin Cities yards\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/deer-resistant\"\u003eDeer-Resistant Plants\u003c\/a\u003e — for high-pressure suburbs like Minnetonka, Wayzata, and Eden Prairie\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/pollinator-garden\"\u003ePollinator Garden Plants\u003c\/a\u003e — supports the Lawns to Legumes program\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- tt-enriched --\u003e\u003ch2\u003eHow Many Sensitive Fern Do I Need?\u003c\/h2\u003e\u003cp\u003eSensitive fern spreads slowly to knit a colony, so space plants about 30 in apart in a naturalizing drift:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBed run\u003c\/th\u003e\n\u003cth\u003ePlants needed (30 in apart)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 ft\u003c\/td\u003e\n\u003ctd\u003e3 plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 ft\u003c\/td\u003e\n\u003ctd\u003e5 plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 ft\u003c\/td\u003e\n\u003ctd\u003e7 plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 ft\u003c\/td\u003e\n\u003ctd\u003e9 plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003ePlant in drifts of 5 or more for a natural woodland look; they fill in over a few seasons.\u003c\/p\u003e\u003ch2\u003eSensitive Fern Season-by-Season in Minnesota\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring:\u003c\/strong\u003e Coppery fiddleheads unfurl into lush, deeply cut bright-green fronds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSummer:\u003c\/strong\u003e Bold textural fronds fill shady, moist ground and slowly spread to form a colony.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFall:\u003c\/strong\u003e Frost-sensitive fronds (the namesake trait) brown with the first frost; distinctive bead-like spore stalks appear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinter:\u003c\/strong\u003e Dies back to the ground, but the rigid spore fronds stand through snow and release spores before spring regrowth.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAt a Glance\u003c\/h2\u003e\u003cp\u003e✔ Minnesota Native   ✔ Deer-Resistant   ✔ Shade-Tolerant   ✔ Rain-Garden \/ Wet-Soil\u003c\/p\u003e\u003ch2\u003ePlant It With\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/lady-fern\"\u003eLady Fern\u003c\/a\u003e — a native moisture-loving fern with finer, lacier texture\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/japanese-painted-fern\"\u003eJapanese Painted Fern\u003c\/a\u003e — silver-and-burgundy color to contrast the green fronds\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/maidenhair-fern\"\u003eMaidenhair Fern\u003c\/a\u003e — a delicate native woodland fern for the same moist shade\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/jack-frost-brunnera\"\u003eJack Frost Brunnera\u003c\/a\u003e — a silver-leaved shade groundcover that loves the same wet soil\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIs Sensitive Fern Right for Your Yard?\u003c\/h3\u003e\u003cp\u003eIt is ideal for shade to part shade in rich, consistently moist or even wet clay — a rain-garden and woodland-edge workhorse the deer ignore. Not a fit if the site is hot, sunny, and dry, or if you want a tidy stay-put clump; it scorches in sun and spreads to colonize.\u003c\/p\u003e","brand":"Three Timbers Minnesota","offers":[{"title":"#1 Gallon","offer_id":54219869684017,"sku":null,"price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/0694\/0465\/files\/Sensitive_Fern_1.jpg?v=1778991905","url":"https:\/\/threetimbersmn.com\/products\/sensitive-fern","provider":"Three Timbers Minnesota","version":"1.0","type":"link"}