Imperialis European alder
Alnus glutinosa 'Imperialis'
RHS AGM 1993
USDA zones3 to 7
SunHandles full sun to partial sun
WaterHandles moderate to wet soil
- Growth rate
- Rapid
- Habit
- Multi-stemmed
- Bloom season
- Spring
- Soil types
- Sand, loam, clay
Garden uses
Attracts
Notes
'Imperialis' European alder (Alnus glutinosa 'Imperialis') is a tree for winter interest and rain gardens. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full or part sun and average to wet, sandy, loamy, or clay soil. It grows at a rapid rate and has a multi-stemmed habit. Flowers open in early to late spring, and birds visit the tree.
Pairs well with Pickerel weed, Sensitive fern, and Northern bayberry.