SelecTree: Tree Detail

BIG BULL ENGLISH HOLLY
Ilex aquifolium 'Big Bull'

General Notes

Ornamental male tree. Has large, mostly smooth-edged leaves.

Trees may be referred to as male or female.

Family: Aquifoliaceae

Tree Characteristics

Erect or Spreading with a Low Canopy.

Conical, Oval or Rounded Shape.

Has Evergreen foliage.

Height: 40 feet.

Width: 25 feet.

Growth Rate: 12 to 24 Inches per Year.

Longevity 50 to 150 years.

Leaves Oval, Dark Green, No Change, Evergreen.

. Has either male or female flowers (dioecious). Trees may be sold as male or female.

Fruitless.

Bark Dark Gray or Light Gray, Smooth.

Shading Capacity Rated as Dense to Very Dense in Leaf.

Tree Site Conditions & Constraints

Sunset Zones 4 - 9 and 14 - 17.

USDA Hardiness Zones 7 - 9.

Exposure Full Sun to Partial Shade.

Moist Soil.

Clay, Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Seaside Tolerance is Good in Mild Zone.

Pests & Disease Information

Resistant to Oak Root Fungus. Susceptible to Leaf Miner and Scales.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium.

Root Damage Potential Rated as Low.

Allergy Health Hazard.

Not Deer Palatable.

Special Uses & Values

Screen.

Cite this tree:
SelecTree. "Ilex aquifolium 'Big Bull' Tree Record." 1995-2017. Oct 20, 2017.
< http://selectree.calpoly.edu/tree-detail/ilex-aquifolium-big-bull >

This tree is not part of the SelecTree Nursery Connection. If you would like to see this tree listed, or know of a nursery that sells it, please contact us at ufei@calpoly.edu.