Quercus ilex
Holm Oak, Evergreen Oak
Family |
Fagaceae |
Genus |
Quercus |
Species |
ilex |
Category |
Woody |
Type |
Tree (evergreen) |
Temperature (°C) |
-21 - 4 |
Temperature (°F) |
-5 - 40 |
Height |
15 - 25 m |
Spread |
8 - 20 m |
General Description |
This species has been placed on the IUCN Red List as least concern. |
Cultivation |
Grow under full sun to part shade in rich, moist, well-drained sandy loam. |
Shape |
Low mounding-spreading. |
Growth |
Medium |
Pests |
Scale, oak skeletonizer, leaf miner, galls, oak lace bugs, borers, caterpillars and nut weevils. May be susceptible to oak wilt, chestnut blight, shoestring root rot, anthracnose, oak leaf blister, cankers, leaf spots and powdery mildew. |
Habitat |
Found at altitudes of 0-1,400 m. |
Bark/Stem Description |
Blackish bark in colour that exfoliates into small square plates, with greyish and pubescent twigs. |
Leaf Description |
Glabrous, glossy dark green leaves with a dull, pubescent underside and measure between 3 - 7 cm in length. |
Flower Description |
Yellow male catkins 4 - 7 cm in length. |
Fruit Description |
Pointed acorns 1.5 - 2 cm in width and height. |
Texture Description |
Medium. |
Notable Specimens |
Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. Kings Park and Botanical Garden, Perth, Australia. |
Propagation |
By seed or cuttings. |