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Alnus rhombifolia

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  • Photo by Ben Legler
  • Photo by Ben Legler
  • Photo by Ben Legler

Alnus rhombifolia

White Alder

Community: Riparian

Brief Description

Ribbed, finely toothed leaves on a sturdy tree for damp areas.

Full details »
  • Shade Tree
  • Attractive Alder "Cones"
  • Grey-Brown Bark
  • Late Winter Catkins

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Availability: Temporarily sold out. New inventory is made available in the spring and fall of each year.

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Plant Description and Details

White Alder can form either a clump of stems growing from ground level or a single trunk that branches higher up. It makes its home along streambanks insagebrush country. Leaf margins are irregularly toothed. Look for rust-colored catkins in the late winter and petite alder "cones." Alder bark was used in tanning and dyeing.

Common Names White Alder
Community Riparian
Annual Water Needs 20-30 inches
Drought Tolerant No
Native Range Along creeks and rivers in Sagebrush country, from WA to MT, south to NV and CA.
Native States CA, ID, MT, NV, OR, UT, WA
Hardiness Down to Zone 5
Exposure Sun - Part Shade
Soil Preference Various
Placement Creekside privacy screen, forested or marshy area.
Mature Height 20+ ft.
Mature Width 20 ft.
Group Spacing 15-30 ft.
Blossom Color Rust-Red Catkins
Establishment Tips Water at planting and 2-3 times deeply the first summer.
Maintenance Tips Prune off lower branches if desired as the tree gets taller.
Plants Symbol ALRH2
Family Name Betulaceae
Lewis & Clark No

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