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Seaside Alder

Alnus maritima

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Overview

Seaside Alder (Alnus maritima) is a deciduous, water-loving shrub, flourishing up to 20 ft tall with equal spread. Boasting glossy green leaves and catkins, it thrives in full sun to partial shade in Zones 3-7. Prefers moist, well-drained soils and often found along streambanks. Features yellow fall foliage and contributes to soil fertility by fixing nitrogen. Ideal for naturalized areas and riparian settings.

Sun Full, HalfWater MediumZones 5–9Type Shrub, TreeClimate Mediterranean

Seaside Alder (Alnus maritima) — Ideal for naturalized areas and riparian settings

Culture

Sun: Full, Half
Water: Medium
USDA zones: 5–9

Shape & size

Mature height: 20–30 Ft.
Mature width: 15–25 Ft.

Classification

Type: Shrub, Tree
Family: Betulaceae
Climate: Mediterranean

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Photos (31)

Seaside Alder (Alnus maritima) — with male catkins measuring up to 2 inches long

Seaside Alder (Alnus maritima) — It is well-suited for areas with wet conditions

Seaside Alder (Alnus maritima) — ensure adequate space for growth and consider its water-loving nature

Seaside Alder (Alnus maritima) — The Seaside Alder is relatively low-maintenance

Seaside Alder (Alnus maritima) — shrub / tree for full or half

Seaside Alder (Alnus maritima) — The seeds it bears provide food for local wildlife

Seaside Alder (Alnus maritima) — as regular moisture is key to this tree's health

Photograph: DouglasGoldman, CC BY-SA 4.0 · source

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