Alaskan Holly Fern

Polystichumsetigerum

Genus
Polystichum (pol-IS-tick-um)
Species
setigerum (set-EE-ger-um)
Synonym
Sun Exposure
Partial to Full Shade
Full Shade
Hardiness
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
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Perennials
Ferns
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

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Gardener's Notes:

0
positive
1
neutral
0
negative
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C
ROSLINDALE, MA | September 2015 | neutral

This species is sometimes confused with P. setiferum, which is sometimes mistakenly labeled "Alaska fern". P. setigerum is rare both in t...Read More

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