Interrupted Fern
Osmunda claytoniana
Taxonomy
- Division:
- Pteridophyta | - Ferns
- Family:
- Osmundaceae
- Genus:
- Osmunda
- Species:
- Osmunda claytoniana
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 6-8 ft
- Light Requirements:
- Shade
- Drought Tolerance:
- High
- Bloom Months:
- jun
- Bloom Colors:
- Not Applicable
Native Range
United States: Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Georgia, Iowa, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont, Wisconsin, West Virginia, Canada: Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)
Host Plant for Caterpillars
osmunda borer moth (Papaipema speciosissima)
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.0 - 6.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- prefers shaded, woodland environments
Germination Information
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: OpenAI GPT-4o