Scientific Name:
Corylus maxima
'Purpurea'
Pronunciation:
KORE-ih-lus MACKS-ih-muh
Common Name:
purple filbert, hazel
Family Name:
Betulaceae
Plant Type:
Tree - deciduous
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.
Habit:
Upright
Form:
Round, Vase
Texture:
Medium - coarse
Mature Height:
5 - 7m
Mature Spread:
4 - 5m
Growth Rate:
Fast
Origin:
Europe, Garden origin
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Landscape Uses:
Summer interest, Urban agriculture
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Heavily veined, Pinnate venation
Surfaces:
Pubescent
Colour in Summer:
Dark-green, Purple, leaf colour seems to be reverting back to green after 10+ years in ground (due to part-shade exposure?)
Colour in Fall:
Yellow
Shapes:
Elliptic, Obovate, Ovate
Apices:
Cuspidate
Bases:
Cordate
Margins:
Dentate, Serrate
Inflorescence Type:
Catkin (ament)
Flower Morphology:
Monoecious plant
Number Of Petals:
0
Colour (petals):
Purple
Flower Time at Peak:
Feb, Mar
Additional Info:
male = catkin; female - just red stigmas emerge from flower bud containing 2 or 3 flowers
Fruit Type:
Edible, Nut
Fruit Colour:
Purple, Dark-red, Brown
Fruiting Time:
Jul, Aug
Additional Info:
Showy, Edible
Bark Morphology:
Prominent lenticels, Lightly fissured
Bark or Stem Colour:
Grey
Leaf Bud Type:
Rounded or globular
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Ectomycorrhizae
Pest Susceptibility:
(Pest resistant, Disease resistant, Drought tolerant)
