Summary
American royal fern (Osmunda spectabilis) is an upright deciduous fern, typically growing 2-3’ tall and wide. This clump-forming perennial has no flowers; brown, tassel-like spore clusters are produced on the tip of the fronds. Fronds are broad, with large leaflets that turn yellow in autumn. Easily grown in humus rich, moist, acidic well-drained soil in partial to full shade, this stately fern attractive as a specimen in a woodland garden or massed. Not favored by deer or rabbit. Zones 3-9.
This species was formerly classified as a variety of royal fern (Osmunda regalis), a Eurasian species with a large distribution.
More Details
- Plant Type
perennial-fern - Sun/Shade Conditions
partial-to-full-shade - Foliage Character
deciduous - Soil Moisture
average-to-wet - Flowering Period
nonflowering - Soil PH
acidic, adaptable - Flower Color
nonflowering - Summer Foliage Color
dark-green - Other Scientific Names
Osmunda regalis var. spectabilis
- Fall Foliage Color
dark-green - Other Common Names
Royal fern - Fruit/Seed Color
no-fruit-or-seed
Additional Information
Lady Bird Johnson Wildflower Center, Missouri Botanical Garden, Illinois Wildflowers, North Carolina Extension