
Green alder
Alnus alnobetula
Green alder is a hardy, multi-stemmed shrub or small tree that fixes nitrogen and thrives in moist, cool environments such as stream banks, alpine slopes, and wetland edges. It is very low maintenance once established and tolerates a wide range of soil conditions including wet, poorly drained soils. An excellent choice for erosion control and wildlife habitat planting.
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
240″ – 360″
Soil
loam
Life Cycle
Perennial
Spacing
72″
Watering Schedule
Every 7-14 Days When Young; Established Plants Rely On Rainfall • Water Deeply At Planting And During Dry Spells; Mature Shrubs Are Largely Self-Sufficient
Soil pH
5.5 – 6.5
Temperature
-30° – 95°F
Root Depth
Medium
Foliage
Medium
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jun 15, 2016 by Tela Botanica − Yoan MARTIN (cc-by-sa)
No nurseries currently have this species in stock.