Alnus incana

Speckled alder

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Key information

Plant type

Deciduous tree

Flower colour



Autumn colour



Skill level


photo by Pernilla Bergdahl, copyright GAP Photos (303294)

Plant details

This tough tree will cope with just about anything, including cold or wet situations. It can even survive fire damage, resprouting from underground stems. Part of this success in difficult sites is due to its ability to fix nitrogen. It makes a medium-sized tree or large shrub with deep grey bark, shiny grey shoots and dull green leaves that are greyish beneath.

Family: Betulaceae

Genus: Alnus

Species: incana

Plant type: Deciduous tree

Flower colour: Yellow

Foliage colour: Dark green

Feature: Autumn colour

Sun exposure: Full sun

Soil: Well-drained/light, Moist, Boggy

Hardiness: Hardy

Skill level: Beginner

Height: 2000cm

Spread: 1000cm

Time to plant seeds: October to March

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