Overview
Polystichum tsussimense is a tufted ferns in the genus Polystichum, part of the Dryopteridaceae family, with evergreen foliage. It typically grows around 0.1-0.5 metres tall and 0.1-0.5 metres wide, reaching full size in around 5-10 years. Polystichum tsussimense grows best in full shade and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H7. It is low maintenance. Suggested uses include underplanting of roses and shrubs, cottage and informal garden, low maintenance and flower borders and beds. It is native to Korea, Japan and China.
About
Polystichum tsus-simense, commonly known as the Korean rock fern, is a perennial herbaceous plant native to East Asia. Its common name corresponds with its ability to grow in shady areas of rock walls.
Wikipedia contributors, CC BY-SA 4.0 — Polystichum tsus-simense
About the genus
Polystichum is a genus of ferns in the family Dryopteridaceae, subfamily Dryopteridoideae, according to the Pteridophyte Phylogeny Group classification of 2016. The genus has about 500 species and has a cosmopolitan distribution. The highest diversity is in eastern Asia, with about 208 species in China alone; the region from Mexico to Brazil has at least 100 additional species; Africa, North America, and Europe have much lower diversity.
Wikipedia contributors, "Polystichum", CC BY-SA 4.0 — Polystichum
Growing conditions
Best soil and position for Polystichum
- Sunlight
- Full shade, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, North-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Polystichum tsussimense size, habit and characteristics
- Plant type
- Ferns
- Habit
- Tufted
- Foliage
- Evergreen
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 5-10 years
- Suggested uses
- Underplanting of roses and shrubs, Cottage and informal garden, Low Maintenance, Flower borders and beds
- Native to
- Korea, Japan, China
Care notes
Pruning and caring for Polystichum tsussimense
- Cultivation
- Prefers shaded, moist, well-drained soil; tolerant of a range of soil types and pH; avoid direct sunlight to prevent frond scorch.
- Pruning
- Remove dead or damaged fronds in early spring to maintain appearance and encourage new growth.
- Propagation
- Division of rhizomes in spring, Bulbils in autumn
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
How do I grow Polystichum tsussimense?
Prefers shaded, moist, well-drained soil; tolerant of a range of soil types and pH; avoid direct sunlight to prevent frond scorch.
Where is the best place to plant Polystichum tsussimense?
Polystichum tsussimense prefers full shade and partial shade. It suits exposed and sheltered positions.
What soil does Polystichum tsussimense need?
Polystichum tsussimense is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
How do I prune Polystichum tsussimense?
Remove dead or damaged fronds in early spring to maintain appearance and encourage new growth.
How big does Polystichum tsussimense grow?
Polystichum tsussimense reaches a height of 0.1-0.5 metres and a spread of 0.1-0.5 metres. It takes around 5-10 years to reach full size.
Is Polystichum tsussimense hardy in the UK?
Polystichum tsussimense has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Polystichum tsussimense?
Division of rhizomes in spring, Bulbils in autumn.
More in the Polystichum genus
- Polystichum set. 'Herrenhausen'
- Polystichum setiferum 'Dahlem'Soft Shield Fern
- Polystichum adiantiforme
- Polystichum discretum