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Holly Oak, Holm Oak
Quercus ilex
Qualifies for Tree Enhancement Program
Climate Resiliency
3 out of 5 stars
Pyramidal habit in youth. Dense, rounded habit in maturity. Leathery, deep green oval to lance-shaped leaves with fuzzy gray to yellow undersides. Leaf margins vary from smooth to toothed on the same plant. Leaves on juvenile have a distinctly holly-like look, giving this tree its common name. Catkin flowers are insignificant. Acorns are a food source for wildlife. Prune for shape and to thin when necessary. Some litter from the acorns. Susceptible to scale and spider mites.
- Plant type: Tree
- Maintenance level: Medium, Low
- Water requirement: Medium
- Sun exposure: Full, Part Sun, Morning Sun, Afternoon Sun
- Height range: 25–30 Feet
- Width range: 20–30 Feet
- Canopy value: 236 ft²
- Growth rate: Medium
- Seasonal habit: Evergreen
- Flower color: Yellow
- Flower season: Spring
- Fruit color: Brown
- Fruit season: Autumn
- General foliage color: Grey, Green
- Hardiness cold tolerance: 10 °F
- Soil preference: Well Drained
- Native location: Mediterranean
- PH preference: Not Particular
- Sunset zones: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
- USDA hardiness zone: 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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