White Alder

Alnus rhombifolia

Family: Betulaceae (beh-tyoo-LAY-see-ee) (Info)
Genus: Alnus (AL-nus) (Info)
Species: rhombifolia (rom-bif-OH-lee-uh) (Info)

Category:

Trees

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Sun Exposure:

Sun to Partial Shade

Foliage:

Grown for foliage

Deciduous

Foliage Color:

Unknown - Tell us

Height:

30-40 ft. (9-12 m)

over 40 ft. (12 m)

Spacing:

30-40 ft. (9-12 m)

over 40 ft. (12 m)

Hardiness:

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Where to Grow:

Unknown - Tell us

Danger:

Unknown - Tell us

Bloom Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Unknown - Tell us

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Clovis, California

Los Angeles, California

Rocklin, California

San Diego, California

Winchester, California

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Mar 30, 2004, palmbob from Acton, CA (Zone 8b) wrote:

Fast and tall native to Southern California (and most of the rest of the west coast)... this tree gets up to 90' tall. Likes water- often find growing right in a stream- not drought tolerant tree.

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