| Scientific Name: | Corylus maxima 'Purpurea' |
| Common Name: | purple filbert, hazel |
| Family Name: | Betulaceae |
| Origin: | Europe, Garden origin |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 5 - 7m x 4 - 5m (height x width) |
| Habit: | Upright |
| Form: | Round, Vase |
| Texture: | Medium - coarse |
| Landscape Uses: | Summer interest, Urban agriculture |
| Exposure: | Full sun |
| Soil or Media: | Well-drained |
| Leaves: | Simple, Alternate, Heavily veined, Pinnate venation, Pubescent, Elliptic, Obovate, Ovate, Dentate, Serrate |
| Flowers: | Catkin (ament), Purple, Feb-Mar |
| Fruit: | Edible, Nut, Purple, Dark-red, Brown, Jul-Aug |
| Key ID Features: | |
| Leaves, maroon to dark green, most broadly elliptic-obovate, 10-13cm long x 6-8cm wide, margin toothed and serrate; catkins of male florets up to 8cm long in Feb.-Mar.; nuts form in July are encased by an involucre husk that extends beyond the nut (in contrast to C. avellana which is also more shrub-like). Winter ID: male catkins reddish brown, female flower buds have small red stigmas and styles extended by end Feb. | |