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Polystichum acrostichoides Christmas fern Evergreen fern (1 Page of 5) The Polystichum acrostichoides plant species is found in N. America - Nova Scotia to Wisconsin, south to Florida, Texas and Mexico. It is a member of the Dryopteridaceae family. Common gardeners may know the plant as Christmas fern. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Polystichum acrostichoides Common Name: Christmas fern Family: Dryopteridaceae Author: (Michx.)Schott. Known Hazards: Although we have found no reports of toxicity for this species, a number of ferns contain carcinogens so some caution is advisable[200].
Many ferns also contain thiaminase, an enzyme that robs the body of its vitamin B complex. In small quantities this enzyme will do no harm to people eating an adequate diet that is rich in vitamin B, though large quantities can cause severe health problems. The enzyme is destroyed by heat or thorough drying, so cooking the plant will remove the thiaminase[172]. Mature Height: 0.6 Mature Width: 0.45 Habitat: Wet woods and rocky slopes[43, 159].
Cultivation Notes: Prefers a sandy humus-rich soil in a shady position that is moist even in winter[1]. Tolerates part sun for up to 6 hours a day if the soil remains moist[200]. Prefers a pH in the range 6.5 to 7.5[200].
A very ornamental plant, it is hardy in all parts of Britain but is best grown in a greenhouse[1].
Members of this genus are rarely if ever troubled by browsing deer[233].
Remove old fronds from the plant in the spring because they may harbour fungal diseases[200].
For further Polystichum acrostichoides gardening information click on one of the blue links below Cultivation | Propagation | General Uses Medicinal | Edible Uses
The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'. View their bibliography

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