ALNUS incana

Commonly known as European alder, Grey alder

A very hardy plant which will prosper in the coldest, wettest position
Further Reading....
  • Deciduous
    Dark-green leaves to 10cm (4in) long, grey-white and hairy beneath.
  • Height
    20m (70ft)
  • Spread
    10m (30ft)
  • Tree
    Yellow-brown male catkins 10cm (4in) long in groups of 3 or 4 are produced in winter and early spring before the leaves followed, in summer, by fruit 1.5cm (½in) long.
  • Hardy - very cold winter
    Hardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F)
  • Full sun

ALNUS incana

Estimated availability autumn 2022 - Not yet confirmed. Could be any time between September and December.
individually £9.00 each , 10+ £9.00 each 
Delivery Information Estimated availability autumn 2022
  • Additional Features
    Good to know
    Useful as a windbreak
    Pests & Diseases
    Phytophthora root rot.
    Place of origin
    Europe, Caucasus.
    Resistant to honey fungus
    These plants have little or few problems with honey fungus.
  • Hardiness
    Fully hardy
  • Leaf margin
    (see photos above)
  • Leaf shape
    (see photos above)
  • Pruning group
    Pruning group 1
    Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
    Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
    When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.

    RHS group 1
  • Seasonal Interest
  • Soil Conditions
    Fertile well drained soil
  • Tree Shape
    Broadly conical
  • Wildlife
    Rabbit Resistant
20m (70ft)
tree - guide for size not form Average Person
  10m (30ft)

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