Osmunda claytoniana
interrupted fern
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Sturdy fronds are "interrupted" by masses of dark brown spores |
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Native woodland fern hardy to Zone 2 |
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Clumping habit |
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Best in acidic soil with consistent moisture |
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Rhizomatous |
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Deer resistant |
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Easy to grow |
Broad green fronds are “interrupted” in the middle by spore-bearing pinnae (leaflets) in early summer, hence the common name. Forming a lovely spreading vase habit, this low-maintenance native fern makes a distinctive addition to the shade border or woodland garden.
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| Osmunda claytoniana LP32 - 32 per flat | Availability |
Height2-4 Feet |
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Spread2-3 Feet |
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Spacing12-18 Inches |
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USDA Hardiness Zone 2-8 |
interrupted fern Interesting Notes
Osmunda claytoniana, the interrupted fern, is an aptly named species with tall 2–4 foot deciduous, sturdy fronds that are "interrupted" when fertile by a shaggy mass of spores (originally dark but fading to tan) midway between the bottom and top of the foliage. It is a North American native that widely colonizes in colder areas. (Alert visitors will find it at Frank Lloyd Wright’s Taliesin in Wisconsin, for example.) This is an easy doer that is especially popular for those just getting started with a fern garden. Give it traditional woodland conditions and enjoy its unique fertile silhouette in Zones 2–8. - Casa Flora
Key Characteristics & Attributes
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