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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
Seaside Alder (Alnus maritima) — Typically reaching heights of 15 to 25 feetSeaside Alder (Alnus maritima) — is a delightful deciduous tree revered for its adaptability and striking appearanceSeaside Alder (Alnus maritima) — scientifically named Alnus maritimaSeaside Alder (Alnus maritima) — Prefers moist, well-drained soils and often found along streambanksSeaside Alder (Alnus maritima) — flourishing up to 20 ft tall with equal spreadSeaside Alder (Alnus maritima) — with a spread of 10 to 15 feet+24

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) — Ideal for naturalized areas and riparian settings
Seaside Alder (Alnus maritima) — Typically reaching heights of 15 to 25 feet
Seaside Alder (Alnus maritima) — is a delightful deciduous tree revered for its adaptability and striking appearance
Seaside Alder (Alnus maritima) — scientifically named Alnus maritima
Seaside Alder (Alnus maritima) — Prefers moist, well-drained soils and often found along streambanks
Seaside Alder (Alnus maritima) — flourishing up to 20 ft tall with equal spread
Seaside Alder (Alnus maritima) — with a spread of 10 to 15 feet
Seaside Alder (Alnus maritima) — the Seaside Alder thrives in full sun to partial shade
Seaside Alder (Alnus maritima) — Features yellow fall foliage and contributes to soil fertility by fixing nitrogen
Seaside Alder (Alnus maritima) — Boasting glossy green leaves and catkins, it thrives in full sun to partial shade in Zones 3-7
Seaside Alder (Alnus maritima) — Seaside Alder (Alnus maritima) is a deciduous
Seaside Alder (Alnus maritima) — making it a real highlight in any landscape design
Seaside Alder (Alnus maritima) — this alder forms an oval to rounded canopy that provides dappled shade
Seaside Alder (Alnus maritima) — grey-brown bark that adds textural interest
Seaside Alder (Alnus maritima) — A notable feature is its smooth
Seaside Alder (Alnus maritima) — showcasing lustrous dark green leaves that span 2 to 4 inches long
Seaside Alder (Alnus maritima) — shrub / tree with yellow blooms
Seaside Alder (Alnus maritima) — enhancing the ecological value of your garden.<br><br>When planted
Seaside Alder (Alnus maritima) — but may require pruning to maintain its shape and remove any dead or damaged branches
Seaside Alder (Alnus maritima) — making it an excellent choice for coastal landscapes.<br><br>In late summer to early fall
Seaside Alder (Alnus maritima) — Seaside Alder (Alnus maritima) is a deciduous; prefers moist, well-drained soils and often found along streambanks
Seaside Alder (Alnus maritima) — this alder produces conspicuous drooping catkins
Seaside Alder (Alnus maritima) — yellow flowers in the garden
Seaside Alder (Alnus maritima) — often found naturally along stream banks and marshy areas

Photograph: DouglasGoldman, CC BY-SA 4.0 · source

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