Common Name: |
Tsushima Holly Fern |
Scientific Name: |
Polystichum luctuosum; syn. Polystichum tsus-simense |
Other Name(s): |
Aka Tsus-sima Holly Fern, Korean Rock Fern |
Category: |
Fern |
Habit: |
Evergreen to semi-evergreen |
Foliage Description: |
Lance-shaped, finely-divided, bi-pinnate, glossy, dark green fronds with black veins grow in shuttle-cock like rosettes to 1-1 1/2 ft. tall and as wide. Each frond tapers to a narrow pointed tip and features 15-20 pair of narrow-ovate to oblong-ovate, spiny-toothed pinnae |
Height of Plant: |
1 1/2-2 ft. |
Spread of Plant: |
1 1/2-2 ft. |
Hardiness: |
USDA Zones 6 - 9 |
Light Requirements: |
Part shade to full shade |
Water Usage: |
Medium |
Native Range: |
Native to slopes, rocky forest areas and stream banks in China, Japan, Korea, Vietnam and Thailand |
Awards: |
RHS Award of Garden Merit in 1997 |
Maintenance: |
Low |
Photographer: |
Richard Buggeln |
Location: |
Japanese Garden |