Quercus nigra Duck oak, Water oak

Fagaceae

Quercus nigra Duck oak, Water oak

A large tree with regular round crown. In nature, the tree can reach a height of over 30 m, but in culture it is rarely taller than around 24 m. The young twigs are strikingly brown-red. The old bark is dark grey and slightly grooved with small flat plates. Very variable leaf shape, from obovate to narrow elongated, depending on its age. The leaf margins vary from smooth-edged to 3-5 lobed, the lobes being on the upper half of the leaf. The glossy green leaf gives the tree a healthy appearance. The broad-oval acorns are 1 to 1.5 cm long and the same width. They are only enclosed by the cupule at their base. The cupule is covered in reddish-brown scales with felt-like hair. Q. nigra is semi-evergreen but usually deciduous in North-West Europe. The tree can tolerate a lot of warmth and likes a fairly moist but well-drained, fertile soil.
dina träd kan bara planteras när de inte har några blad. På grund av detta kommer vi att börja leverera igen från november 2024.
Availability
Specifikationer
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Höjd
15 - 20 m
Krona
round, half-open crown
Bark och grenar
twigs brown-red, bark grey-brown, slightly grooved
blad
obovate to narrow elongated, smooth-edged to shallow-lobed, glossy green, 5 - 11 cm
Blommor
golden yellow ♂ catkin, May
Frukter
broad oval, 1 - 1.5 cm, in ones and twos, cupule with felt-like, hairy reddish-brown scales
Taggar/törnen
ingen
Giftighet
oftast inte giftig för människor, (stora) husdjur och boskap
Marktyp
few requirements
Markfuktighet
Möjlig på våt mark
Platskrav
Tål ingen härdning
vinterhärdighet
6 (-23,3 do -17,8 °C)
Vindbeständighet
good
Övriga beständigheter
beständig mot frost (vinterhärdighet 1 t.o.m. 6), beständig mot vind, beständig mot vägsalt
Tillämpning
alléer och breda vägar, industriområde
Form
högstam träd, flerstammigt träd
Ursprung
South East USA
högstam träd flerstammigt träd kalkrik mark lerig jord torvmark sandmark Tål ingen härdning beständig mot vägsalt beständig mot frost (vinterhärdighet 1 t.o.m. 6) Möjlig på våt mark beständig mot vind Första storlek högre än 12 meter Halvöppen krona grön gul genomsnittlig inte giftig (vanligen)
Vanliga frågor
Quercus nigra

Quercus nigra can eventually reach a height of 15 - 20 m, depending on the site and climate conditions.

Quercus nigra is genomsnittlig and can eventually reach a height of 15 - 20 m, depending on the site and climate conditions.

The right time to plant Quercus nigra is during the dormancy period. In Western Europe, Quercus nigra 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.

Quercus nigra blooms in may.
General