Alnus glutinosa ‘Imperialis’ starts out as a shrub and grows into an elegant, medium-sized tree. It grows slowly, and it takes quite a long time before it develops into a true tree shape.
The leaf is deeply lobed, and the lobes, which have smooth margins, are linear in shape. In the fall, it remains on the tree for a long time. The stalked buds and young leaves feel sticky (glutinosa = sticky).
The tree has an attractive growth habit with drooping twigs.
| Application: | Large Gardens, Squares and Parks, Solitary Trees, Streets |
|---|---|
| Growing conditions: | (Partial) shade, Dry (sandy) soil, Normal soil, Moist (clay) soil, Sunny, does not tolerate paved surfaces |
| Growth habit: | Wide rising |
| Adult height: | Second size trees 6-12 m |
| Soil: | Suitable for moist soils; not too poor; prefers moist soil |
| Flowers: | Male flowers are brownish-yellow catkins; female flowers are inconspicuous |
| Fruits: | egg-shaped alder cones (September) |
| Environmental factors: | Prefers a sunny location |
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