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Alnus incana

Growing Information

Plant Type: Tree
Sunlight: Sun to Shade
Soils: Moist to Wet
Bloom Time: Small red catkins in early spring
Size: 15-25 feet in height and 5-10 foot spread

Speckled alder is a common plant of abandoned cranberry bogs and other low, wet areas around the Cape. It grows quickly and has the ability to form dense thickets that stabilize soil and prevent erosion. This plant is best identified by its unique fruit structure that is a cone-like cluster filled with small winged nutlets. Old cones typically persist for a year after forming, so they can be seen in all seasons.

Garden Companions

New York Ironweed (Vernonia novaboracensis), Red Cardinal Flower (Lobelia cardinalis)

Nature Benefits

• Nutlets provide food for many songbirds.
• Commonly used by beavers to build dams and lodges.
• Thickets provide cover for wildlife.

Native Habitat

Marshes and bogs, shores of rivers or lakes.

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