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Hardiness: USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F)
Sun Exposure: Partial to Full Shade
Danger: N/A
Bloom Color: Inconspicuous/none
Bloom Time: N/A
Foliage: Grown for foliage Evergreen
Other details: Provides winter interest
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From spores
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On Mar 25, 2007, Cretaceous from El Cerrito, CA (Zone 9b) wrote:
Named after the Japanese island of Tsus-Sima, this fern is native to Japan, Korea, China, Vietnam, Thailand, and Indochina.
Probably my favourite widely-cultivated (non-U.S. native) fern, and has thrived here in zone 9b.
Polystichum tsus-simense is evergreen and fairly hardy. It is a steady medium-paced grower, with rich dark-green fronds, and can take several years to reach a moderate size. It is often seen locally in the nursery departments of stores such as Orchard Supply Hardware.
On Oct 8, 2004, tcfromky from Mercer, PA (Zone 5a) wrote:
Neat, attractive, compact habit. Long used in the South. Dark green typical fern appearance. This is the fern used in corsages because of it’s minute scale and detail.
Regional...
This plant has been said to grow in the following regions:
Wetumpka, Alabama El Cerrito, California Merced, California San Francisco, California Clifton, Colorado Pompano Beach, Florida Atlanta, Georgia Jonesboro, Georgia Saint James, Missouri Cincinnati, Ohio Stillwater, Oklahoma Portland, Oregon Lexington, Virginia Radford, Virginia Kalama, Washington Madison, Wisconsin
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