Botanical Name: Alnus rhombifolia
Common Name: Alder, White / Western Alder  
Plant photo of: Alnus rhombifolia
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  • Anatomy

  • Culture

  • Design

Plant Type



Height Range

40-60', 60-100'


Flower Color

Green, Yellow


Flower Season



Leaf Color

Dark Green


Bark Color



Fruit Color

Brown, Yellow


Fruit Season



Full, Half, Shade



Medium, Extra in Summer


Growth Rate



Soil Type

Sandy, Clay, Loam, Rocky


Soil Condition

Average, Moist


Soil pH

Neutral, Basic


Adverse Factors


Design Styles

English Cottage, Wetlands, Woodland


Accenting Features



Seasonal Interest

Winter, Spring


Location Uses

Background, Lawn, Park


Special Uses

Screen, Wind Break, Shade Tree, Naturalizing


Attracts Wildlife


Information by: Carol Bollinger
Photographer: Normans/Jacobs/Mullany
  • Description

  • Notes

White Alder is a deciduous tree with spreading or ascending branches and downward pointing tips. It has coarse teeth and dark green leaves. It is very fast growing 50'-90' tall with a 40' spread. It is very heat and wind tolerant and is a native to California. Green yellow flowers appear in spring. During winter, small cones decorate bare limbs.
Planting: 1. Dig a hole 1" less the depth and 2 times the width of the container. 2. Fill hole with water, let soak. 3. Set root ball in hole. 4. Fill hole halfway with native soil and water. 5. Finish back filling hole, build basin and water.