Alnus cordata / Ontano cordato

Species: Alnus cordata Desfontaines
Italian common noun: Ontano cordato, Ontano napoletano
Family: Betulaceae
Natural shapesTrees DeciduosFull sunPartial shade
Climate resistance: + / -20° CClimate resistance: + / -20° C
- Legislative Decree no. 151 - Legislative Decree no. 386

Origin: Southern Italy, Corsica.

Botanical characteristics: it is a medium size fast-growing tree, about 15 mt high and with conical crown. Leaves are shiny green, oval with serrated margin. On the lower face there are yellowish tufts hair at the junction of secondary veins. It is a monoecious plant, with separated male and female flowers on the same plant. Infructescenses consist of 1-3 woody ovoid 2.5 cm long catkins, which persist on the plant all winter long. The bark is grey, smooth, with lenticels and short vertical slits.

Agronomic and environmental characteristics: It is a rustic plant, it grows well in all kinds of soils also in calcareous ones. It is the species of Alnus which is less demanding of moist soil. It can grow in poor and dry soils. It has an high resistance to pollution.

Use: It is used in reforestations of hilly, both humid and dry uncultivated areas, in the river banks and as an ornamental plant in avenues as well.

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Produzione Note Altezza Circonferenza tronco Diametro/Lato chioma Q.tà  
Vaso 9.9.13 Vaso 9.9.13
Vaso Ø 18 Vaso Ø 18
Vaso Ø 22 Vaso Ø 22
Vaso Ø 24 Vaso Ø 24
Zolla 200-250 cm
Zolla 250-300 cm
Zolla/Air-Pot/Vaso 300-350 cm
Zolla/Air-Pot/Vaso 350-400 cm
Zolla/Air-Pot/Vaso 400-450 cm
Zolla/Air-Pot/Vaso 450-500 cm
Zolla 6-8 cm
Zolla 8-10 cm
Zolla 12-14 cm
Zolla/Air-Pot/Vaso 14-16 cm
Zolla/Air-Pot/Vaso 16-18 cm
Zolla/Air-Pot/Vaso 18-20 cm
Zolla/Air-Pot/Vaso 20-25 cm
Zolla/Air-Pot/Vaso 25-30 cm