Alder tree Common
A valuable native tree that is known to directly support over 90 different organisms. It will grow on wet sites that are not too acid or flooded for long periods.
Alder tree (Incana) Grey
This is a widely distributed aggressive pioneer species from mainland Europe and Russia.It is totally hardy in Ireland, and thrives on cold wet ground making it ideal for planting on reclaimed and derelict land. It suckers freely and it can be regularly coppiced.
Alder tree (Cordata)
Italian It was introduced to Ireland sometime before 1820.It tolerates dryish soils.It is fast growing, sometimes reaching up to 15 metres in just 15 years .It tolerates high levels of air pollution.