Polystichum aculeatum
Common Name : hard shield fernFamily : DryopteridaceaeType : FernHabit : Clump-formingSpread : 10-50 cmFoliage : EvergreenFoliage colour : Deep greenHardiness: Hardy in most places throughout the UK even in severe winters -15° to -10°Sunlight : Part Shade / Full ShadeMoisture : Moist but well-drained / Poorly-drainedSoil : Acid / Neutral / AlkalineSeason of interest : Spring - Summer - Autumn - Winter
P. aculeatum is an evergreen fern forming a neat rosette of bipinnate, erect or arching, leathery dark green, narrowly lanceolate fronds to 90cm long, with slightly prickly pinnules.