Alnus japonica is usually a small to medium-sized tree, but can grow into a large tree of 20 m or even higher under favourable conditions. The crown is initially relatively narrowly upright, but later widens to form a conical crown. The leaves are a glossy dark green, sometimes the young shoots are bronze coloured. The leaf margins are shallowly serrated. The male and female catkins mature in late winter. They are followed by the characteristic alder cones. These are green at first but turn dark brown as they ripen. Naturally, A. japonica often grows along stream and river banks or in swamps. The tree grows in any soil type, but the soil should be sufficiently moist or even wet. Despite being introduced to the Netherlands as early as 1866, it has never been a common species. Nevertheless, the fact that this elegant little tree is suitable for use on moist to wet soils offers plenty of opportunities for planting along banks and in wadis.
magas törzsű faAgyagos talajraagyagos talajTőzeges talajraHomokos talajraNem viseli el az útburkolatokatútsónak ellenállfagytűrő (télállósági fok: 1-6)Nedves talajon használhatóhosszú idejű árvíznek ellenállrövid idejű árvíznek ellenállszéltűrőszéles piramis1. magasság 12 m-nél nagyobbFélig nyitott koronazöldlila/kéksárgaátlagosnem mérgező (általában)
Gyakran ismételt kérdések
Alnus japonica
Alnus japonica can eventually reach a height of 10 – 15(20) m, depending on the site and climate conditions.
Alnus japonica is átlagos and can eventually reach a height of 10 – 15(20) m, depending on the site and climate conditions.
The right time to plant Alnus japonica is during the dormancy period. In Western Europe, Alnus japonica 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.