| Scientific Name: | Osmunda regalis |
| Common Name: | royal fern |
| Family Name: | Osmundaceae |
| Origin: | Canada - eastern, South America, U.S. - northeast |
| Hardiness Zone: | Zone 3: (-40 to -34 °C) |
| Plant Type: | Fern |
| Mature Size: | 1.3 - 2.0m x 0.6 - 1.0m (height x width) |
| Habit: | Arching, Stiffly upright, Upright |
| Form: | Vase |
| Texture: | Medium |
| Landscape Uses: | Accent plant, Container planting, Fall interest, Mixed shrub border, Specimen plant, Waterside planting, Wetland - bogs, Woodland margin |
| Exposure: | Full sun only if soil kept moist, Part sun/part shade, Filtered shade |
| Soil or Media: | Acidic, Bog, Humus rich |
| Leaves: | Compound, Fern-like, Basal, Leathery, Glabrous, Bipinnate, Lanceolate, Oblong, Serrulate |
| Flowers: | |
| Fruit: | Sporangium (spores), Yellow, Brown, Jul-Aug |
| Key ID Features: | |
| Large shade-loving fern; fronds about 1m tall, mid green, openly odd-pinnate; pinnae about 4cm long x 13mm wide, attached to rachis by a <1mm stalk. | |