Osmunda regalis 'Cristata' (Cristata Royal Fern)
Botanical Information
| Family | Osmundaceae |
| Genus | Osmunda |
| Species | regalis |
| Cultivar | 'Cristata' |
| Category | Perennials, Ferns |
Details
| USDA Hardiness Zone | 6b - 7a |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 6a - 6b |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H6 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -21 - (-15) |
| Temperature (°F) | -5 - 5 |
| Height | 1 - 1.5 m |
| Spread | 1 - 1.5 m |
Description and Growing Information
| General Description | Osmunda regalis 'Cristata' is a bushy deciduous fern with bipinnate fronds. |
| ID Characteristic | Pinnules, pinnae and fronds are all terminally forked. |
| Cultivation | Grow in full sun to full shade, moist, well- to poorly-drained soil. |
| Pests | No serious pests or diseases of note. |
| Notable Specimens | RHS Garden Rosemoor, North Devon, England. |
| 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. |
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