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Brittle Bladder Fern (Cystopteris fragilis)
Family: Dryopteridaceae | Edibility: Edible (1/5)
Cystopteris fragilis is a deciduous Fern growing to 0.2 m (0ft 8in) by 0.2 m (0ft 8in). See above for USDA hardiness. It is hardy to UK zone 2. The seeds ripen from July to August. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in full shade (deep woodland) or semi-shade (light woodland). It prefers moist soil.
Edible Parts & Harvest Seasons
Edible Parts: Roots/Tubers
Harvest Seasons: Fall, Spring, Winter
Flavor & Culinary Uses
Root. An emergency food, it is only used when all else fails. — An emergency food, it is only used when all else fails.
Habitat & North American Range
Rocky woods, shady rocks and walls, especially on basic rocks, to 1200 metres. (Zone 4, Zone 5, Zone 6, Zone 7, Zone 8)