Description
The Cork Oak, a symbol of the Mediterranean landscape, is prized for its thick, spongy bark harvested as cork. With its evergreen foliage, strong silhouette and ecological value, it is ideal for sheltered gardens with warm exposure and well-drained soil.
Native range: Western Mediterranean (Portugal, Spain, southern France, North Africa)
Botanical family: Fagaceae
Remarkable trait: Its bark can be harvested every 9–12 years without harming the tree; supports high biodiversity
Mature height: 8–12 m (up to 20 m in optimal conditions)
Mature width: 6–10 m
Habit: Broad crown, irregular and spreading with age
Bark: Thick, corky, grey-brown, deeply grooved
Foliage: Evergreen, dark green, leathery with wavy or slightly toothed edges
Growth rate: Moderate to slow
Hardiness: Low to moderate (-8 °C to -15 °C max) – sensitive to frost and cold winds
Bloom time: April to May
Flowers: Male catkins and small female clusters on same tree
Fruits: Acorns with scaly cups, appreciated by wildlife
Ripening: October to November
Best exposure: Full sun, warm, wind-sheltered spot
Preferred soil: Sandy, acidic to neutral, light and well-drained
pH: Acidic to neutral
Planting outside of Mediterranean zones requires specific care:
Outside Mediterranean areas: apply thick mulch and wrap with fleece during winter for the first 3–5 years
In pots: move indoors or to a frost-free area in winter
First 2 years: Water regularly during dry periods
Later: Once established, drought-tolerant
When and how: Minimal pruning, only to shape or remove dead/damaged branches. Avoid cutting into the bark.
Methods: Fresh acorn sowing in autumn (slow germination); grafting sometimes used for commercial cork production
Ideal setting: Large gardens, dry slopes, Mediterranean-style landscapes
Companion plants: Lavender, rosemary, cistus, myrtle, pistachio
Vulnerabilities: Root rot in wet soils, frost damage, young trees sensitive to wind
Prevention: Excellent drainage, sheltered position, mulching in winter
Once planted, do not relocate. Mycorrhizal addition at planting is beneficial. Thrives in hot, dry summers, but must be protected from freezing when young.
Monoecious species – self-pollinating, though fruit set depends on climate and health of tree
Growing a Cork Oak outside its native range means accepting some challenges: it demands sun, excellent drainage, and winter care. In return, you’ll enjoy a majestic and iconic tree, alive with biodiversity and Mediterranean charm.
Expédition & livraison
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Plants are packed, staked and labeled.
Packaging is carefully implemented to avoid any problems.
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