Common Name
Smooth alder
Hazel alder
Plant Form
Shrubs & Small Trees
Duration
Perennial
Max Height (ft)
15.0
Width (ft)
8.0 -
15.0
Region
Coastal
Piedmont
Mountain

Hardiness Zone
5,
6,
7,
8,
9
Commercially available
Yes
Global Biodiversity Information Facility (GBIF):
Additional Info
Habitat: Found naturally in wet areas including streambanks and bogs. Frequent to locally common throughout.
Wildlife Value: Supports Harvester butterfly larvae. The Harvester butterfly does not sip flower nectar but they do feed on aphid honeydew. Harvester butterfly and carnivorous larvae eat the aphids commonly found on alder. Birds and small mammals eat the pollen-rich male flower clusters in the spring.
Flower Color
Brown
Red/burgandy
Gold/Yellow
Flower Prominence
Conspicuous
Bloom Time
Spring
Light Requirements
Full sun
Partial sun
Moisture Requirements
Wet
Moist
Soil Texture
Clay
Low Maintenance
Yes
Seed or Fruit eaten by wildlife?
Yes
Pollinators
Bees
Butterfiles
Top 30 for Butterfly and Moth Caterpillars?
Yes
Number of Lepidotera Species Genus Supports
156
Recommended for
Nurseries that may carry live plant