SelecTree: Tree Detail
Corylus maxima 'Purpurea'
Photo Locations: Stanley Park - Vancouver, B.C. and Arnold Arboretum - Boston, MA
Utility friendly tree.
Showy male catkins in winter. Best in partial shade in hot areas.
Additional Common Names
PURPLE-LEAVED FILBERT, PURPLE-LEAVED HAZELNUT
Erect or Spreading with a Low Canopy.
Rounded, Umbrella or Vase Shape.
Has Deciduous foliage.
Height: 15 - 20 feet.
Width: 12 - 15 feet.
Growth Rate: 24 Inches per Year.
Longevity 50 to 150 years.
Leaves Round, Purple, Deciduous.
Flowers Inconspicuous. Green or Yellow. Flowers in Winter. Has separate male and female flowers on the same tree (monoecious).
Brown Nut enclosed in Leafy Bracts, Medium (0.50 - 1.50 inches), fruiting in Fall Edible.
Bark Dark Brown or Light Green, Furrowed or Smooth.
Shading Capacity Rated as Moderately Dense in Leaf.
Shading Capacity Rated as Moderate out of Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 2 - 9 and 14 - 17.
USDA Hardiness Zones 4 - 9.
Exposure Full Sun to Partial Shade.
Loam or Sand Texture.
Highly Acidic to Neutral Soil pH.
Seaside Tolerance is Not Suited.
Pests & Disease Information
Susceptible to Aphids and Spider Mites, Chlorosis, Leaf Blight, Powdery Mildew and Sooty Mold.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
Allergy Health Hazard.
Special Uses & Values
Cite this tree:
SelecTree. "Corylus maxima 'Purpurea' Tree Record." 1995-2019. Aug 21, 2019.
< https://selectree.calpoly.edu/tree-detail/corylus-maxima-purpurea >