“Alnus incana (Grey Alder) is a hardy and tough medium tree, capable of coping with cold, wet soils and exposed situations.

It is a fast grower, well suited to industrial areas and street plantings. Its pointed grey leaves readily distinguish it from Alnus glutinosa.

Alnus incana was introduced from Europe in the 1780s and it does best on calcareous (chalky/lime) soils – ideally wet or moist – and tolerates air pollution.

It is a medium-sized tree 15–20 metres tall with smooth grey bark, its life span being well over 50 years. “