Korean Rock Fern Polystichum luctuosum
Other Common Name(s):
Previously known as:
- Polystichum tsus-simense
- Phonetic Spelling
- pol-IS-tick-um luc-two-OH-som
- Description
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Korean Rock Fern or Tsu-sima Holly Fern, is a herbaceous evergreen. It is a creeping, crown forming rhizome. It prefers wet or evenly moist soil. Plant in humus-rich soil in partial to full shade. It prefers cool temperatures.
Poor drainage may lead to crown rot, especially in the winter.
VIDEO Created by NC State Extension's Homegrown series featuring Mark Weathington, Director of JC Raulston Arboretum.
- Profile Video:
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Polystichum
- Species:
- luctuosum
- Family:
- Dryopteridaceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Country Or Region Of Origin:
- Zimbabwe to S. Africa, , Himalaya to Japan and Vietnam
- Wildlife Value:
- Attracts butterflies
- Play Value:
- Attracts Pollinators
- Defines Paths
- Textural
- Particularly Resistant To (Insects/Diseases/Other Problems):
- Heavy shade, This plant is seldom damaged by deer.
- Dimensions:
- Height: 0 ft. 10 in. - 1 ft. 3 in.
- Width: 0 ft. 6 in. - 1 ft. 6 in.
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Whole Plant Traits:
- Plant Type:
- Fern
- Woody Plant Leaf Characteristics:
- Semi-evergreen
- Habit/Form:
- Arching
- Creeping
- Mounding
- Growth Rate:
- Medium
- Maintenance:
- Low
- Texture:
- Fine
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Cultural Conditions:
- Light:
- Deep shade (Less than 2 hours to no direct sunlight)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Clay
- Sand
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Wet
- Available Space To Plant:
- Less than 12 inches
- 12 inches-3 feet
- NC Region:
- Coastal
- Piedmont
- USDA Plant Hardiness Zone:
- 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
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Fruit:
- Fruit Description:
- No fruits. This plants reproduces via spores.
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Flowers:
- Flower Description:
- No flowers.
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Leaves:
- Woody Plant Leaf Characteristics:
- Semi-evergreen
- Leaf Color:
- Green
- Leaf Feel:
- Glossy
- Leaf Type:
- Compound (Pinnately , Bipinnately, Palmately)
- Fronds
- Leaf Arrangement:
- Other/more complex
- Leaf Shape:
- Lanceolate
- Oblong
- Ovate
- Rhomboidal
- Leaf Margin:
- Crenulate
- Hairs Present:
- No
- Leaf Length:
- 3-6 inches
- Leaf Width:
- 1-3 inches
- Leaf Description:
- Glossy, dark green fronds. The blade is lance-shaped and bipinnate with black veins. Basal pinnules of pinna are conspicuously separated and larger. Pinnules sharply cut, terminating in bristles. Petiole has persistent, long, dark scales.
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Stem:
- Stem Color:
- Green
- Stem Is Aromatic:
- No
- Stem Bud Scales:
- Enclosed in more than 2 scales
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Landscape:
- Landscape Location:
- Container
- Houseplants
- Riparian
- Small Space
- Woodland
- Landscape Theme:
- Butterfly Garden
- Fairy Garden
- Pollinator Garden
- Shade Garden
- Winter Garden
- Design Feature:
- Accent
- Border
- Mass Planting
- Attracts:
- Butterflies
- Resistance To Challenges:
- Deer
- Heavy Shade
- Rabbits
- Urban Conditions
- Wet Soil
