Quercus affinis is a large tree in its natural range in Mexico, reaching 30 m. But in culture, the tree rarely grows taller than 10-15 m. It is an evergreen tree that retains a narrow oval crown for a long time and only widens in later life. The dark green-grey bark is smooth to finely grooved and flaking with small square plates. The oblong to lanceolate leaves are glossy dark green and variable in shape. Sometimes they are smooth-edged, others have up to 10 teeth on each side. The young leaves are often bronze-orange in colour. Acorns may form after inconspicuous flowering, although this is not always certain in the northern (western) European climate. The acorns, which stand alone or in pairs, are nearly round and are about a third enclosed by a smooth nap. For a species of Mexican origin, Q. affinis is surprisingly hardy. It is a strong-growing species that stands out for its slender growth habit and beautiful glossy leaves. The tree grows in any sufficiently moist but permeable soil, from acidic to slightly calcareous. However, the tree is sensitive to drought and branches may die during prolonged drought.
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branches reddish brown: bark dark green-grey, finely grooved and checkered
Leaf
oblong to lanceolate, 3-10 cm, glossy dark green, evergreen
Flowers
catkins, inconspicuous
Fruits
almost round acorn, 1-1.5 cm long
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
loamy soil, sandy soil, calcareous soil
Paving
tolerates no paving
Winter hardiness zone
8 (-12,2 to -6,7 °C)
Wind resistance
good
Other resistances
can withstand wind
Application
avenues and broad streets
Shape
clearstem tree
Origin
North Africa
Clear stem treeacid soilloamy soilpeaty soilsandy soiltolerates no pavingcan withstand windoval1st size , taller than 12 metreshalf-open crowngreenyellowgreenaverage growingnon-toxic (usually)
Frequently asked questions
Quercus affinis
Quercus affinis can eventually reach a height of 10 – 15 (30) m, depending on the site and climate conditions.
Quercus affinis is average growing and can eventually reach a height of 10 – 15 (30) m, depending on the site and climate conditions.
The right time to plant Quercus affinis is during the dormancy period. In Western Europe, Quercus affinis with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.