SelecTree: Tree Detail
Cupressocyparis × leylandii
Photo Locations: Cal Poly State University - San Luis Obispo, CA, Hoyt Arboretum - Portland, OR, Los Angeles County Arboretum - Arcadia, CA and The National Arboretum - Washington, DC
Susceptible to coryneum canker. Very fast growing.
Has fragrant Leaf.
Native to Wales.
Callitropsis × leylandii
× Cupressocyparis leylandii
Has Evergreen foliage.
Height: 35 - 50 feet.
Width: 15 - 25 feet.
Growth Rate: 36 or More Inches per Year.
Longevity 40 to 150 years.
Leaves Scalelike, Gray Green or Medium Green, No Change, Evergreen.
Flowers Inconspicuous. Brown. Flowers in Summer. Has separate male and female flowers on the same tree (monoecious).
Brown Cone, Medium (0.50 - 1.50 inches), fruiting in Fall.
Bark Dark Gray or Red Brown, Exfoliating, Scaly or Striated.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 3 - 24.
USDA Hardiness Zones 6 - 9.
Exposure Full Sun to Partial Shade.
Moist to Dry Soil.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Salinity Tolerance is Coastal Good.
Seaside Tolerance is Good in Moderate Zone.
Pests & Disease Information
Susceptible to Caterpillars, Needle Blight and Root Rot.
Health, Safety & Environmental Concerns
Branch Strength Rated as Weak to Medium
Root Damage Potential Rated as Moderate.
None Known Health Hazard.
Biogenic Emissions considered Low.
Fire Resistance is Unfavorable.
Desirable Wildlife Plant.
Special Uses & Values
Cite this tree:
SelecTree. "Cupressocyparis × leylandii Tree Record." 1995-2020. Jun 5, 2020.
< https://selectree.calpoly.edu/tree-detail/cupressocyparis-×-leylandii >
SelecTree Nursery Connection Map
Cal Poly / ESRI