Osmunda regalis
'Cristata'
Cristata Royal Fern
| Family |
| Osmundaceae |
| Genus |
| Osmunda |
| Species |
| regalis |
| Cultivar |
| 'Cristata' |
| Category |
| Perennials, Ferns |
| USDA Hardiness Zone |
| 6b - 7a |
| Canadian Hardiness Zone |
| 6a - 6b |
| RHS Hardiness Zone |
| H6 |
| Temperature (°C) |
| -21 - (-15) |
| Temperature (°F) |
| -5 - 5 |
| Height |
| 1 - 1.5 m |
| Spread |
| 1 - 1.5 m |
| General Description |
| Osmunda regalis 'Cristata' is a bushy deciduous fern with bipinnate fronds. |
| Cultivation |
| Grow in full sun to full shade, moist, well- to poorly-drained soil. |
| ID Characteristic |
| Pinnules, pinnae and fronds are all terminally forked. |
| Pests |
| No serious pests or diseases of note. |
| Habitat |
| Horticultural origin. |
| Leaf Description |
| In summer, the tips of fertile fronds are covered with rust-coloured sori (spore-producing receptacles). |
| Flower Description |
| Non-flowering but producing spores. |
| Notable Specimens |
| RHS Garden Rosemoor, North Devon, England. |