Black Alder Hedge - Alnus glutinosa

Anyone looking for a suitable tree or hedge for damp or wet soil will find the Black Alder (Alnus glutinosa) makes an ideal choice. It makes a handsome, medium-sized tree that stands around 25m tall and is often grown as a multi-stemmed specimen or hedge. It has lustrous green leaves with serrated edges and attractive male catkins which decorate the bare branches from autumn to spring.

Its best to plant Bare Root hedging in a double staggered row, and Pot Grown / Rootballed hedging in a single row.

Plant Spacing:
Bare Root. When planting smaller (60cm and below) plants you will need 6 plants per metre, and for the medium size (60cm and above) you will need 5 per metre, and for the larger size (90cm and above) plants you will need 4.5 per meter. 

Pot Grown / Root Balled. When planting smaller (80cm and below) plants you will need 5 plants per metre, and for the medium size (80cm and above) you will need 4 per metre, and for the larger size (120cm and above) plants you will need 3 to 3.5 per meter. 

Black Alder Hedge - Alnus glutinosa
 
 

Key Facts
Likes all types of soil Likes sun or shade Annual growth 25cm to 35cm Deciduous Full hardy
Final height 20m Final spread 4.5m

Frequently bought together

To give your hedging plants the best start we recommend these accessories. Make sure you also check our helpful hedge planting guides.