ALNUS glutinosa

Commonly known as Black alder, Common alder

Yellow catkins in March, suitable as a windbreak especially in waterlogged areas
Further Reading....
  • Deciduous
    Dark-green leaves to 10cm (4in) long, sticky when young.
  • Yellow
  • Height
    25m (80ft)
  • Spread
    10m (30ft)
  • Tree
    Yellow-brown male catkins 10cm (4in) long in groups of 3-5. Fruit, 2.5cm (1in) long in summer.
  • 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 glutinosa

 
Gift Wrapping available on this plant - UK Delivery Only
individually £11.00 each , 10+ £10.00 each 
Collect only available from our nursery nr Redruth in Cornwall Ready in 3 - 5 days
Delivery Information Normally 3 - 5 days
plant size comparison icon 2 to 3 Litre
Click to see photo
  • Additional Features
    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 fungus
    These plants have little or few problems with honey fungus.
  • Garden Location/Conditions
    Coastal / windswept
    Tolerant of full exposure to sea winds
  • Hardiness
    Fully hardy
  • Leaf margin
    Denticulate
    		(see photos above)
  • Leaf shape
    Ovate
    		(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.
  • Seasonal Interest
    Spring
    Winter
  • Soil Conditions
    Fertile well drained soil
  • Tree Shape
    Broadly conical
  • Wildlife
    Rabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Alnus - Growing Guide
Trees - Care Guide
25m (80ft)
 tree - guide for size not form Average Person
  10m (30ft)
  

Useful extras...

Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00

Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00

Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00

Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries. It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants. Perfect used in conjunction with Rootgrow™.
Only £7.50

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