Log in Start trial

White Alder

Alnus Rhombifolia

Design with this plant

Overview

The White Alder (Alnus rhombifolia) is a deciduous tree reaching up to 50-80 ft. with a 20-30 ft. spread. It features a smooth, gray-white bark and diamond-shaped, toothed leaves. Adaptable to wet soils, this riparian species is ideal for streambanks. Catkins add interest in late winter to early spring. Hardy in Zones 3-7, it thrives in full sun to partial shade, enhancing biodiversity with its nitrogen-fixing abilities.

Sun Full, Half, ShadeWater Extra in Summer, MediumZones 8–10Type TreeClimate Mediterranean, Temperate

White Alder (Alnus Rhombifolia) — The White Alder (Alnus rhombifolia) is a deciduous tree reaching up to 50-80 ft

White Alder (Alnus Rhombifolia) — and although it is best suited for USDA zones 7 through 9

White Alder (Alnus Rhombifolia) — as it supports local wildlife with its seeds and catkins

White Alder (Alnus Rhombifolia) — rounded form that creates an elegant silhouette in any landscape.<br><br>Characterized by its bright green; it can adapt to a

White Alder (Alnus Rhombifolia) — scientifically known as Alnus rhombifolia

White Alder (Alnus Rhombifolia) — It features a smooth, gray-white bark and diamond-shaped, toothed leaves; with a canopy spread of about 20 to 40 feet

White Alder (Alnus Rhombifolia) — green and yellow flowers in the garden

Culture

Sun: Full, Half, Shade
Water: Extra in Summer, Medium
USDA zones: 8–10

Shape & size

Classification

Type: Tree
Family: Betulaceae
Climate: Mediterranean, Temperate

See full data, regional cultivation notes, and design tools. Build a client presentation around this plant.

Start your 14-day trial

Photos (62)

White Alder (Alnus Rhombifolia) — The White Alder (Alnus rhombifolia) is a deciduous tree reaching up to 50-80 ft

White Alder (Alnus Rhombifolia) — and although it is best suited for USDA zones 7 through 9

White Alder (Alnus Rhombifolia) — as it supports local wildlife with its seeds and catkins

White Alder (Alnus Rhombifolia) — rounded form that creates an elegant silhouette in any landscape.<br><br>Characterized by its bright green; it can adapt to a

White Alder (Alnus Rhombifolia) — scientifically known as Alnus rhombifolia

White Alder (Alnus Rhombifolia) — It features a smooth, gray-white bark and diamond-shaped, toothed leaves; with a canopy spread of about 20 to 40 feet

White Alder (Alnus Rhombifolia) — green and yellow flowers in the garden

White Alder (Alnus Rhombifolia) — Catkins add interest in late winter to early spring; as it supports local wildlife with its seeds and catkins

White Alder (Alnus Rhombifolia) — serving as a food source for birds and small mammals

White Alder (Alnus Rhombifolia) — In late winter to early spring

White Alder (Alnus Rhombifolia) — When incorporating this tree into a garden design

White Alder (Alnus Rhombifolia) — is a deciduous tree native to the western United States; and requires minimal pruning once established

White Alder (Alnus Rhombifolia) — This tree can reach a mature height of 50 to 80 feet; scientifically known as Alnus rhombifolia

White Alder (Alnus Rhombifolia) — Catkins add interest in late winter to early spring

White Alder (Alnus Rhombifolia) — Adaptable to wet soils, this riparian species is ideal for streambanks

White Alder (Alnus Rhombifolia) — the tree produces conspicuous catkins; male catkins are pendulous and up to 4 inches long

White Alder (Alnus Rhombifolia) — it thrives in full sun to partial shade; it features a smooth, gray-white bark and diamond-shaped, toothed leaves

White Alder (Alnus Rhombifolia) — the White Alder's foliage turns a soft yellow in the fall

White Alder (Alnus Rhombifolia) — it thrives in full sun to partial shade

White Alder (Alnus Rhombifolia) — tree for full or half or shade

White Alder (Alnus Rhombifolia) — and requires minimal pruning once established

White Alder (Alnus Rhombifolia) — it can adapt to a wide range of environments.<br><br>The White Alder fixes nitrogen in the soil

White Alder (Alnus Rhombifolia) — Incorporating this tree into your garden adds both aesthetic charm and a boost to local biodiversity

White Alder (Alnus Rhombifolia) — This tree can reach a mature height of 50 to 80 feet

Photographs by 19 contributors

John Rusk from Berkeley, CC BY 2.0 · source
Mitch Barrie from Costa Mesa, CA,…, CC BY-SA 2.0 · source
Dr Mary Gillham Archive Project, CC BY 2.0 · source
wackybadger, CC BY-SA 2.0 · source
Eugene Zelenko, CC BY-SA 4.0 · source
Henk Monster, CC BY 3.0 · source
Winarsih2806, CC BY-SA 4.0 · source
Rison Thumboor from Thrissur, India, CC BY 2.0 · source
karsten_s, CC BY 4.0 · source
Philipp Weigell, CC BY 3.0 · source
Steve Daniels, CC BY-SA 2.0 · source
Mokkie, CC BY-SA 3.0 · source
Shagil Muzhappilangad, CC BY-SA 4.0 · source
Leoadec, CC BY-SA 3.0 · source
Mazhanilavu, CC BY-SA 4.0 · source
Gordon Griffiths, CC BY-SA 2.0 · source
Peter J. Caprio, CC BY-SA 4.0 · source
Drsssuresh1961, CC BY-SA 4.0 · source
Sathya K Selvam, CC BY-SA 4.0 · source

Related plants

American Hazelnut (Corylus Americana) — shrub with yellow blooms

Shrub

American Hazelnut

Corylus Americana

American Hornbeam (Carpinus Caroliniana) — is an attractive deciduous understory tree

Tree

American Hornbeam

Carpinus Caroliniana

Beaked Hazelnut (Corylus Cornuta) — which are roughly 2.5 to 5 inches long; where it can contribute to erosion control due to its propensity for suckering

Shrub

Beaked Hazelnut

Corylus Cornuta

Cutleaf Weeping Birch (Betula Pendula 'Laciniata') — drooping branches and fine-textured

Tree

Cutleaf Weeping Birch

Betula Pendula 'Laciniata'

Eastern Hop Hornbean (Ostrya Virginiana) — Eastern Hop Hornbeam (Ostrya virginiana), a durable native understory tree, grows 20-40 ft; recognizable for its

Tree

Eastern Hop Hornbean

Ostrya Virginiana

European Hornbeam (Carpinus Betulus) — tree for full

Tree

European Hornbeam

Carpinus Betulus