holly oak (Quercus ilex)

Native: Western Mediterranean Region

General Notes:

A Quercus ilex in Sacramento Capital Park # 23 is registered as a California Big Tree. It measures 70 feet high, with a trunk circumference of 132 inches and a crown spread of 92 feet.

Tree Characteristics

• Shape: Rounded or Umbrella
• Foliage: Evergreen Leaves Lanceolate to Ovate, Glossy Dark Green, No Change
• Height: 30 - 60 feet.
• Width: 30 - 60 feet.
• Flowers: Inconspicuous. Flowers in Spring or Winter.
• Fruit: Brown Acorn, Medium (0.50 - 1.50 inches), fruiting in Winter or Summer.
• Bark: Light Green or Light Gray, Furrowed or Smooth.
• Shading Capacity: Dense in Leaf.
• Litter Issue: Dry Fruit.

Tree Site Conditions & Constraints

• Zones: Sunset 4 – 24, USDA Hardiness 7 - 9.
• Exposure: Full Sun to Partial Shade.

Pests & Disease Information

• Resistant: Oak Root Fungus and Verticillium
• Susceptible: Scales and Spider Mites, Anthracnose and Root Rot.

Health, Safety & Environmental Concerns

• Branch Strength: Strong.
• Root Damage Potential: Low.
• Health Hazard: Allergy and Poisonous
• Biogenic Emissions: High
• Attracts: Birds and Squirrels.

​Source:

SelecTree. "Quercus ilex Tree Record." 1995-2018. Mar 1, 2018. < https://selectree.calpoly.edu/tree-detail/quercus-ilex >