About This Plant

The grey alder (Alnus incana) is a deciduous tree native to Europe and Asia, known for its greyish bark and serrated leaves. It’s often planted for ornamental purposes and thrives in wet soils, making it useful for soil stabilization and wetland restoration. Grey alder wood is versatile, used in construction, woodworking, and charcoal production.

The Story


The leaves are alternate, simple, and serrated. They are dark green on the upper surface and paler on the underside. The leaves turn yellow in the fall before dropping.


Grey alder produces both male and female catkins on the same tree. The male catkins are elongated and yellow, while the female catkins are smaller and green. The female catkins develop into cone-like structures known as strobiles. These cones contain small, winged seeds that are dispersed by the wind.
Home » Attractions » The Arboretum » Features » Grey Alder