Alphabetical Plant Listing

Polystichum tsussimense (Korean Rock Fern)

Korean Rock Fern, Polystichum tsus-simense, Aspidium tsussimense


Perfect for small spaces, award-winning Polystichum tsussimense (Korean Rock Fern) is a small tufted evergreen fern bearing broadly lance-shaped, leathery, glossy blue-green fronds, adorned with black stems and narrowly oblong, spiny-toothed, pointed pinnae. Tidy and low-growing, this cute fern remains lush and fresh-looking throughout the season. A popular choice for boutonnieres, Korean Rock Fern is also terrific for the rock garden, at the front of shaded borders or in containers.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society for its outstanding qualities
  • Grows up to 12-18 in. tall and wide (30-45 cm).
  • A part shade to full shade lover, it is best grown in fertile, humus-rich, well-drained soils. Protect crowns from excessive winter wet.
  • This plant is a great choice for shady beds and borders, underplanting of roses and shrubs, cottage gardens, rock gardens or containers.
  • Virtually pest and disease free
  • Dead or damaged fronds may be removed as necessary.
  • Propagate by sowing spores as soon as ripe, division of rhizomes in spring or by bulbils in fall
  • Native to eastern Asia

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Requirements

Hardiness 6 – 9
Heat Zones 5 – 9
Climate Zones 4, 5, 6, 7, 14, 15, 16, 17
Plant Type Ferns
Plant Family Polystichum - Ferns
Exposure Partial Sun, Shade
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 15" (30cm – 37cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Garden Uses Beds and Borders, Patio and Containers, Underplanting Roses and Shrubs
Garden Styles Gravel and Rock Garden, Informal and Cottage

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 6 – 9
Heat Zones 5 – 9
Climate Zones 4, 5, 6, 7, 14, 15, 16, 17
Plant Type Ferns
Plant Family Polystichum - Ferns
Exposure Partial Sun, Shade
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 15" (30cm – 37cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Garden Uses Beds and Borders, Patio and Containers, Underplanting Roses and Shrubs
Garden Styles Gravel and Rock Garden, Informal and Cottage

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