Scientific Name: Onoclea sensibilis
Common Name: sensitive fern
Family Name: Onocleaceae
Origin: U.S. - northeast
Hardiness Zone: Zone 3: (-40 to -34 °C)
Plant Type: Fern
Mature Size: 0.7 - 1.3m x 0.6 - 1.0m (height x width)
Habit: Arching
Form: Vase
Texture: Medium
Landscape Uses: Group or mass planting, Perennial border, Spring interest, Waterside planting
Exposure: Part sun/part shade, Filtered shade, Sheltered
Soil or Media: Humus rich
Leaves: Compound, Fern-like, Basal, Soft flexible, Glabrous, Lanceolate, Pinnately lobed
Flowers:
Fruit: Sporangium (spores), Brown, Black, Jul-Aug
Key ID Features:
Fronds bright green, long-stalked, triangular-lanceolate, 30-90cm long x 20-30cm wide, deeply divided nearly to rachis forming broad lobes with way margins, thin and papery (very prone to wilting when exposed to frost or drought or "sensitive"); separate erect spore bearing fronds in centre of plant, 20-50cm long x 2-5cm wide, sori bead-like and in two rows, green and then brown, persistent.