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'A' > ALNUS >


Commonly known as Alder

Trees found on poor or wet soils throughout the northern hemisphere. Produces conspicuous male catkins and smaller female ones which develop into cone-like fruits. Some make excellent windbreaks.

Genus of about 35 species of deciduous trees and shrubs found throughout the northern hemisphere usually on poor or wet soils. Alders are pioneer tree species and used for land reclamation. Their ability to fix nitrogen in the soil improves feartility for species following them. Other uses include firebreaks and for the bodies of Fender electric guitars. The majority of pilings on which Venice was built was alder wood. The UK alder, glutinosa, is a useful wildlife plant. Caterpillars feed on the leaves, the flowers provide nectar and pollen for insects, the seeds are eaten by birds, especially redpolls and siskins, and the roots provide holts for otters.

  • Pests & Diseases - Phytophthora root rot.
  • Place of Origin - northern hemisphere.
  • Deciduous - alternate, simple, toothed leaves. Male (longer) and female catkins form on the same tree. Females form cone-like fruit after pollination.
  • Tree
  • Full Sun
  • fertile well drained soil

Buy Varieties of ALNUS

ALNUS cordata   AWARD

ALNUS cordata  >

Commonly known as: Italian alder.
conical-shaped tree with bright green glossy leaves
individually £7.00 each, 10+ £6.00 each
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ALNUS glutinosa

ALNUS glutinosa  >

Commonly known as: Black alder, Common alder.
yellow catkins in March, suitable as a windbreak especially in waterlogged areas
individually £7.00 each, 10+ £6.00 each
Gift Wrapping available on this plant

ALNUS incana

ALNUS incana  >

Commonly known as: European alder, Grey alder.
a very hardy plant which will prosper in the coldest, wettest position
individually £7.00 each, 10+ £6.00 each
Gift Wrapping available on this plant

ALNUS incana 'Aurea'  AWARD

ALNUS incana 'Aurea'  >

Commonly known as: European alder, Grey alder.
Young shoots and foliage yellow with catkins distinctly tinted red
Large £25.00 each
Gift Wrapping available on this plant

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