Osmunda regalis (Royal Fern)
Botanical Information
| Family | Osmundaceae |
| Genus | Osmunda |
| Species | regalis |
| Category | Perennials |
| Type | Ferns |
| Origin | Missouri, United States of America. |
Details
| USDA Hardiness Zone | 3 - 9 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 1a - 8a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H3 - H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -40 - 0 |
| Temperature (°F) | -40 - 30 |
| Height | 1 - 2 m |
| Spread | 1 - 2 m |
| Growth | Fast |
Description and Growing Information
| General Description | Robust deciduous clump forming fern. |
| ID Characteristic | Bipinnate fronds holding rust-colored spore-bearing pinnae at tips. |
| Landscape | Low maintenance underplanting. |
| Propagation | Sowing spores when ripe. |
| Cultivation | Best grown in moist cool soil. |
| Pests | No major issues. |
Photographs
O. regalis 'Cristata' at RHS Garden Rosemoor in North Devon, England.
O. regalis 'Purpurascens' at RHS Garden Rosemoor in North Devon, England.
Awards
