Polystichum Species, Hard Shield Fern

Polystichumaculeatum

Genus
Polystichum (pol-IS-tick-um)
Species
aculeatum (ah-kew-lee-AY-tum)
Synonym
Sun Exposure
Partial to Full Shade
Full Shade
Foliage
Grown for foliage
Evergreen
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Bloom Color
Bloom Time
Other Details
Category
Ferns
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Propagation Methods
By dividing the rootball
From spores
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Sumter, South Carolina

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Gardener's Notes:

1
positive
0
neutral
0
negative
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(Zone 8a) | May 2006 | positive

This fern is native to Britain and grows in alkaline soils, also in moist places on rocks. It does however tolerate a wide range of soil...Read More

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