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Athyrium Species, Asian Lady Fern, Auriculate Lady Fern, Eared Lady Fern

Athyriumotophorum

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Genus

Athyrium (uh-THEE-ree-um)

Info

Species

otophorum (oh-toh-FOR-um)

Info

Synonym

Asplenium otophorum

Athyrium erythrocaulon

Athyrium rigescens

Sun Exposure

Partial to Full Shade

Foliage

Grown for foliage

Deciduous

Height

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

Spacing

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

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)

Danger

N/A

Bloom Color

Inconspicuous/none

Bloom Time

N/A

Other Details

Gardener's Notes:

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positive

neutral

negative

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Cretaceous

El Sobrante, CA (Zone 9b) | June 2007 | neutral

Native to Korea, Japan, and China.

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