Persistent catkins; male and female catkins on the same plant start blooming in late winter or very early spring; female catkins cone-like 1-2 cm long, persistent after seed has shed, hanging in groups of 3-6
Smooth grey bark similar to River Alder
Landscape Use:
You can use this where you want a screen that has a nice deep, dark, dense green look
Green alders have a pretty form in winter and the silvery grey bark creates winter interest
Small birds like finches and chickadees eat the seed throughout the winter
Flexible in exposure, will grow in full sun or shade
Extremely drought tolerant for Calgary and area gardens