Usually multiple-stemmed tree with an upright central leader, creating an irregular, ovoid crown. Both the trunk and the young twigs are grey. In contrast with A. glutinosa, A. incana has no sticky parts. The alternate leaves are light green and very deeply dissected. The undersides are hairy to velvety, just like the twigs. Buds are short stalked and the inflorescence consists of ± 0.5 cm inconspicuous female catkins and ± 7 cm purplish male catkins with yellow pollen. The grey brown strobiles appear in September and decorate the tree all winter. 'Laciniata' roots deep, but shallower than A. glutinosa. Is more tolerant to moist than the species, but for really wet sites the strongly resembling and larger A. glutinosa 'Laciniata' is better suited.
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usually not toxic to people, (large) pets and livestock
Soil type
tolerant to moister soils than the species
Soil moisture
suitable for dry soil, withstand short flood, withstand long flood
Paving
tolerates no paving
Winter hardiness zone
2 (-45,5 to -40,1 °C)
Wind resistance
good, susceptible to sea wind
Other resistances
resistant to frost (WH 1 - 6), can withstand wind, resistant to de-icing salt
Application
tree containers, roof gardens, industrial areas
Shape
clearstem tree, feathered tree, multi-stem treem
Origin
± 1861
Clear stem treefeathered treeMulti-stem treecalcareous soilclay soilloamy soilsandy soiltolerates no pavinglight-lovingresistant to de-icing saltresistant to frost (WH 1 - 6)suitable for dry soilwithstand long floodwithstand short floodcan withstand windovoid/egg-shaped2nd size, between 6 and 12 metreshalf-open crowngreenvioletFebruaryaverage growingConspicuous bloomnon-toxic (usually)Ornamental fruit
Frequently asked questions
Alnus incana 'Laciniata'
Alnus incana 'Laciniata' can eventually reach a height of 10 - 12 m, depending on the site and climate conditions.
Alnus incana 'Laciniata' is average growing and can eventually reach a height of 10 - 12 m, depending on the site and climate conditions.
The right time to plant Alnus incana 'Laciniata' is during the dormancy period. In Western Europe, Alnus incana 'Laciniata' 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.