Alnus glutinosa 'Imperialis' at Roath Brook Gardens

Alnus glutinosa 'Imperialis' 1

Alnus glutinosa 'Imperialis'
August 2019

Grid reference ST 19498 78128
Common name Cut leaved alder
Origin Europe and N. Africa
Deciduous Yes
Status Wales Champion 2013
Height 13M April 2015
Reference 154

This tree is on the north side of the brook, against the Westville Road railings near the junction with Ladysmith Road. The branches of the Alnus can be seen emerging from the ivy which engulfs it. The tree clearly is in need of some attention.

Alnus glutinosa 'Imperialis' foliage

Alnus glutinosa 'Imperialis' foliage
late May 2015

Alnus glutinosa 'Imperialis' fruit

Alnus glutinosa 'Imperialis' fruit
early September 2015

Alnus glutinosa 'Imperialis' catkin

Alnus glutinosa 'Imperialis' catkins
early April 2016

General tree description

Alnus glutinosa 'Imperialis' is an ornamental cultivar of the Common alder, Alnus glutinosa. It is a slow-growing medium-sized tree (up to about 18 metres tall) with a conical shape. Its leaves are deeply pinnately lobed, and the lobes are slender reaching more than halfway to the midrib, giving a fern-like appearance. The male catkins are purplish, and the fruits are small and cone-like.