Turners Oak (Quercus turneri)
Evergreen oak popular among collectors, with a Mediterranean flair, for solitary planting in large gardens and inner courtyards. Highly vaulted, with deep roots. Produces yellow-green catkin flowers in spring and half-covered acorns among glossy leathery foliage in autumn.
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Appearance
Evergreen oak popular among collectors, with a Mediterranean flair, for solitary planting in large gardens and inner courtyards. Highly vaulted, with deep roots. Produces yellow-green catkin flowers in spring and half-covered acorns among glossy leathery foliage in autumn.
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Leaves
Obovate to narrowly elliptic leaves with broadly scalloped margins, 6 - 15 cm long, 3 - 6 cm wide. Leaf stalk 0.5 - 1 cm long. Alternate arrangement. Leathery evergreen leaves are matt dark green above, green and slightly hairy below with feathery marginal veining.
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Leaf upperside
Obovate to narrowly elliptic leaves with broadly scalloped margins, 6 - 15 cm long, 3 - 6 cm wide. Leaf stalk 0.5 - 1 cm long. Alternate arrangement. Leathery evergreen leaves are matt dark green above, green and slightly hairy below with feathery marginal veining.
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Leaf underside
Obovate to narrowly elliptic leaves with broadly scalloped margins, 6 - 15 cm long, 3 - 6 cm wide. Leaf stalk 0.5 - 1 cm long. Alternate arrangement. Leathery evergreen leaves are matt dark green above, green and slightly hairy below with feathery marginal veining.
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Fruits
Several oval nuts on thin tomentose stalks. 2 cm long. One-half embedded in a felty cup. Ripen in November.
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Bark
Pale brown, small-sectioned outer bark with yellowish-brown branches.
Application
Solitary plants, large shrub, bird protection, parks, gardens, inner courtyards
Native regions
Europe, Middle East
Location parameters
Light: full sun to off-sun; moderately frost-hardy; fume-hardy; tolerates urban climates; soil: dry to fresh; soil structure: does not like compacted soil, sandy-loamy to loamy; pH value: slightly acid to slightly alkaline; nutrient concentration: normal.
Demands
For raw or ripe soil with normal nutrient concentration, moderately frost and fume-hardy. Tolerates urban climates. Soil compaction must be avoided. For unheated greenhouses.
Growth
Height of growth: 6 m - 10 m. Spread: 5 m - 8 m. Small tree or shrub with widely rounded, bushy crown and deep roots.
Leaves
Obovate to narrowly elliptic leaves with broadly scalloped margins, 6 - 15 cm long, 3 - 6 cm wide. Leaf stalk 0.5 - 1 cm long. Alternate arrangement. Leathery evergreen leaves are matt dark green above, green and slightly hairy below with feathery marginal veining.
Flowers
Flowering period: V to VI. Monoecious yellowish-green blossoms. Male catkins in bushy clusters on young shoots. Female catkins solitary or in spike-like stands with two or more flowers near the tips.
Fruits
Several oval nuts on thin tomentose stalks. 2 cm long. One-half embedded in a felty cup. Ripen in November.
Bark
Pale brown, small-sectioned outer bark with yellowish-brown branches.
Roots
Deep-rooting.