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ALNUS glutinosa
Commonly known as Black alder, Common alder
Yellow catkins in March, suitable as a windbreak especially in waterlogged areas
individually £11.00 each , 10+ £10.00 each
Full Plant Details - Sun/Soil & other attributes - Click to close
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Good to know
The native alder. Wildlife plant - birds. Lasts indefinitely underwater. Makes good charcoal. Produced superior gunpowder. Was coppiced widely in north-east UK for clogs. -
Pests & Diseases
Phytophthora root rot. -
Place of origin
Europe, northern Africa, western Asia. -
Resistant to honey fungusThese plants have little or few problems with honey fungus.
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DeciduousDark-green leaves to 10cm (4in) long, sticky when young.
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Yellow
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Coastal / windsweptTolerant of full exposure to sea winds
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Fully hardy
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Denticulate
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Ovate
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Height
25m (80ft) -
Spread
10m (30ft)
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TreeYellow-brown male catkins 10cm (4in) long in groups of 3-5. Fruit, 2.5cm (1in) long in summer.
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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.
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Hardy - very cold winter
Hardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F) -
Spring Seasonal Interest
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Winter Seasonal Interest
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Fertile well drained soil
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Full sun
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Broadly conical
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Rabbit Resistant
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Mature Size25m (80ft)
10m (30ft)
View Planting Tips and Care Advice
Alnus - Growing Guide
Trees - Care Guide
- How to plant a tree - Video Tip ondemand_video
- How to plant a tree
- Ties - Video Tip ondemand_video
- Restaking fallen young trees - Video Tip ondemand_video
- Fallen old tree - Video Tip ondemand_video
- Clearing up fallen beech tree - Video Tip ondemand_video
- Spring pruning - Video Tip ondemand_video
- Removing side shoots - Video Tip ondemand_video
- Pruning and Shaping Magnolia - Video Tip ondemand_video
- Deer protection - Video Tip ondemand_video
- Weed Spraying - Video Tip ondemand_video
- Removing Ivy - Video Tip ondemand_video
- Removing wire protection - Video Tip ondemand_video
- Tidying young trees in October - Video Tip ondemand_video
- Tree Survey - Video Tip ondemand_video
- Crown uplift - Video Tip ondemand_video
- Removing shoots below graft - Video Tip ondemand_video
- Removing peeling bark - Video Tip ondemand_video
- Maintaining variegation - Video Tip ondemand_video
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