Technical sheet
Quercus ilex
diaplant.pt · 21/09/2026
Holm Oak · Quercus ilex
Size
Extra Large
Mature Height
10–20 m
Mature Spread
10–18 m
Foliage
Evergreen
Growth Habit
Rounded, Spreading
Heat Tolerance
High
Drought Tolerance
High
Sun
Full Sun, Partial Shade
Hardiness Zone
Zone 7a–10b
Care Level
Easy
Growth Rate
Slow
Soil Types
Well Drained, Loamy, Chalky, Sandy
Salt Tolerance
Moderate
Flowering Season
April – May
Ornamental Interest
Foliage (Year-round)
Pest Resistance
Resistant
Disease Resistance
Resistant
Native Range
Mediterranean basin
Landscape Uses
Shade Tree, Screening / Privacy, Windbreak / Shelter, Specimen / Focal Point, Coastal Planting
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