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grey alder

grey alder

Alnus incana

tree☀️ full sun💧💧💧 high waterZone 2aZone 7b

A fast-growing deciduous tree with gray-green foliage and attractive catkins in spring, thriving in moist to wet soils. Valuable for wetland restoration and wildlife habitat, particularly in northern climates.

Overview

Form
Upright
Growth Rate
fast
Size
30–20′ tall × 20–30′ wide
Dormancy
deciduous

Tolerances & Soil

low

Flood Tolerance

high
Zone 2aZone 7b
1471013
ColderWarmer
Zone range: Zone 2a to Zone 7b

pH Range

5.57
7.0
3.556.589
pH range: 5.5 to 7

Soil Texture

Coarse, Medium

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

Spring

Succession Role

pioneerearly successional

Native to the United States

Native Range

Northern Europe, Asia, and North America

Native to: Alaska, Idaho, Maine, Michigan, Minnesota, Montana, New Hampshire, New York, Oregon, Vermont, Washington, Wisconsin, Wyoming

Function & Care

biomass/mulchdynamic accumulatorerosion controlhedgerownitrogen fixerwildlife benefitwindbreak
Nitrogen Fixer · Moderate

Establishment & Care

Establishment
easy
Maintenance
low
Propagation
seed, cutting, layering, sucker