Trees

Alnus rhombifolia (White Alder (Native))

Alnus rhombifolia

Also known as White Alder (Native)

$14.95

Size

☀SunFull sun to part shade
💧WaterHigh
🌡Zones6-9
🌿NativePNW native
🦌DeerResistant
🌊CoastalSuitable

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About This Plant

Alnus rhombifolia (White Alder), 'White Alder' is valued in the landscape for character, form, and seasonal interest.

White Alder , PNW native riparian tree along streams and in moist bottomlands. Fast-growing pioneer; nitrogen-fixing root nodules improve soil. Important wildlife species.

Full sun to part shade suits this species. Plant in moist; tolerates seasonally wet sites soil. Hardy USDA Zone 5 to 9. Best near water or in moist sites. Watch for tent caterpillars; generally short- to medium-lived (50 to 75 yr).

This species is native to the Pacific Northwest and contributes ecologically as a wildlife host on the right site.

Plant Details

Botanical
Alnus rhombifolia
Common name
White Alder (Native)
Mature size
40-80 ft tall × 20-40 ft wide
Growth rate
Fast
Bloom time
Late winter to early spring (February to April)
Bloom color
Brown
Foliage color
Green

Care Notes

Plant in moist to wet soil; streambank, riparian, and rain-garden conditions are ideal. Tolerates seasonal flooding. Minimal pruning needed. Protect young plants from deer and elk browse until established.

Garden Attributes

  • Pacific NW native
  • Deer resistant
  • Coastal suitable
  • Grown organically
  • Pollinator value: None documented
  • Wildlife: Bird forage, Bird habitat, Larval host, Small mammal forage
Row of potted bareroot conifer trees at Dragonfly Farm

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