Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (2024)

Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (1)

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Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (2)http://flickr.com/photos/41894142129@N01 Tom Harpel

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Summary


Physical Characteristics

Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (3)Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (4)
Polystichum munitum is an evergreen Fern growing to 1 m (3ft3in) by 0.3 m (1ft).
See above for USDA hardiness. It is hardy to UK zone 4. It is in leaf all year.
Suitable for: light (sandy) and medium (loamy) soils. 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 dry or moist soil.

UK Hardiness MapUS Hardiness Map

Synonyms

Aspidium munitum.

Plant Habitats

Woodland GardenDappled Shade;Shady Edge;not Deep Shade;Ground Cover;

Edible Uses

Edible Parts: Root
Edible Uses:

Root - roasted[2, 105, 118, 161]. Peeled and then baked like potatoes[213]. The roots were generally viewed by the native North American Indians mainly as a famine food for use when little else was available[256]. The roots were generally harvested in the spring, before the plant came into growth then cooked and peeled before being eaten[256].

ReferencesMore on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
AntidandruffBirthing aidPoultice

An infusion of the fronds has been used as a wash or poultice to treat boils and sores[213, 257]. The young shoots have been chewed and eaten as a treatment for cancer of the womb and to treat sore throats and tonsillitis[257]. The leaves have been chewed by women to facilitate childbirth[257]. The sporangia have been crushed and applied as a poultice to burns, sores and boils[213, 257]. A decoction of the rhizomes has been used in the treatment of dandruff[213, 257].

ReferencesMore on Medicinal Uses

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Our Latest books on Perennial Plants For Food Forests and Permaculture Gardens in paperback or digital formats.

Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (5)

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Other Uses

HairLining

The leaves are used for lining boxes, baskets, fruit drying racks etc and as a stuffing material in bedding[99, 118, 257]. A decoction of the rhizome treats dandruff[172]. Plants can be grown as a ground cover and are best spaced about 1 metre apart each way[208].

Special Uses

Ground cover

ReferencesMore on Other Uses

Cultivation details

Very hardy and easily grown in light shade in any reasonable soil[187]. 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]. It is possible that the var. imbricans will succeed in drier soils[K]. Prefers a pH in the range 6.5 to 7.5[200]. Members of this genus are rarely if ever troubled by browsing deer[233]. A very ornamental plant[1], it is a robust clump-forming species[187]. Remove old fronds from the plant in the spring because they may harbour fungal diseases[200].

ReferencesCarbon Farming Information andCarbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

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Plant Propagation

Spores - best sown as soon as they are ripe, though they can also be sown in the spring. Sow them on the surface of a humus-rich sterilized soil. Keep the compost moist, preferably by putting a plastic bag over the pot. Pot on small clumps of plantlets as soon as they are large enough to handle and keep humid until they are well established. Do not plant outside until the ferns are at least 2 years old and then only in a very well sheltered position. Division. This is best done in the spring.

Other Names

If available other names are mentioned here

Native Range

NORTHERN AMERICA: Canada (Yukon, British Columbia), United States (Alaska, South Dakota, Idaho, Montana, Oregon, Washington, California, Baja California (Norte) (Guadalupe Island))

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Polystichum munitum Giant Holly Fern, Western swordfern PFAF Plant Database (9)

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Polystichum acrostichoidesChristmas FernFern0.6 4-9 MLMFSM12
Polystichum aculeatumHard Shield FernFern0.8 4-8 LMFSM102

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

Expert comment

Author

(Kaulfuss.)C.Presl.

Botanical References

60200

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For a list of references used on this page please go here

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