Common alder (Alnus glutinosa) is a tree that can grow higher than 15m tall and 3m – 8m wide.
This plant has several common names including: common alder, aar, aller, black alder or European alder.
This is a deciduous plant that takes 20-50 years to reach full maturity.
Plant profile
Common name: common alder, aar, aller, black alder, European alder
Scientific name: Alnus glutinosa
Plant type: Trees
Habit: Columnar / Upright
Height: Higher than 15m
Spread: 3m – 8m
Foliage: Deciduous
Sunlight: Full Sun
Soil: Chalk, Clay, Loam
Moisture: Moist but well drained, Poorly drained
Garden type: Coastal, Wildflower meadow, Wildlife Gardens
Planting type: Hedging & Screens, Low Maintenance
Seasonal colors
| Season | Stem | Foliage | Flower | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |

How to plant Common alder (Alnus glutinosa) – Bruce Marlin, CC BY-SA 3.0, via Wikimedia Commons

Cultivation profiles – Growing Common alder (Alnus glutinosa) – Giovanni Caudullo, CC BY 4.0, via Wikimedia Commons



