
trefle.io · Taken Jun 30, 2018 by Tela Botanica − Jean-Jacques HoudrÉ (cc-by-sa)
Polypodiaceae
Northern hollyfern
Polystichum lonchitis
Also known as Northern shield fern, Prickly shield fern, Holly fern, Aspidium aculeatum subsp. lonchitis
Native Plants · Fern · Evergreen · Shade Plant · Woodland · Holly Fern · Polystichum · Cool Climate · Rock Garden · Hardy · Native Fern
Northern hollyfern is a striking, evergreen fern with glossy, dark green fronds that thrives in shaded, moist, and cool garden settings such as woodland borders or shaded rock gardens. Plant in humus-rich, well-drained soil and keep consistently moist, especially during dry spells. It is cold-hardy and low-maintenance, needing only an annual tidy-up of old fronds in early spring.
Growing conditions
The details behind the basics
- Daily light
- 3 hours
- Watering
- Water deeply to keep the soil consistently moist; do not allow the root zone to dry out completely · Every 7-10 days
- Maintenance
- Low
- Soil pH
- 6–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Flowers
- No
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alaska, Albania, Alberta, Altay, Arizona, Austria, Baltic States, Belgium, British Columbia, Bulgaria, Buryatiya, California, Colorado, Corse, Czechoslovakia, East European Russia, Finland, France, FøRoyar
- Attracts
- Birds
Sources: trefle, usda
More Polystichum
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Polystichum imbricans subsp. imbricans
Polystichum imbricans subsp. imbricans
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Common sword fern
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Christmas fern
Polystichum acrostichoides
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Soft shield-fern
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