Small to average-sized tree with upright trunk and drooping branches. This creates a nice weeping form with wide pendulous branches. The trunk and the young twigs are grey. In contrast to A. glutinosa, A. incana has no sticky parts. The alternate leaves are ovoid and acuminate. They have a boldly toothed margin and the underside is velvety haired. The buds have short stalks. 'Pendula' has an inconspicuous inflorescence of female catkins, + 0.5 cm long and male catkins with yellow pollen, + 7 cm long. In September the grey brown strobiles appear and decorate the tree all winter. The tree has a deep-rooting main root, but remains more shallow than the A. glutinosa. Intolerant to hard surfaces.
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usually not toxic to people, (large) pets and livestock
Soil type
calcicole, tolerates dry soil
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
Origin
Van der Bom, Oudenbosch, The Netherlands, before 1900
Clear 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 windbroad weeping2nd size, between 6 and 12 metreshalf-open crowngreenvioletFebruaryaverage growingConspicuous bloomnon-toxic (usually)Ornamental fruit
Frequently asked questions
Alnus incana 'Pendula'
Alnus incana 'Pendula' can eventually reach a height of 6 - 8 m, depending on the site and climate conditions.
Alnus incana 'Pendula' is average growing and can eventually reach a height of 6 - 8 m, depending on the site and climate conditions.
The right time to plant Alnus incana 'Pendula' is during the dormancy period. In Western Europe, Alnus incana 'Pendula' 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.