Green Alder, Siberian Alder, Sitka Alder, Wavy Leaf Alder

Alnusviridis subsp. sinuata

Family
Betulaceae (beh-tyoo-LAY-see-ee)
Genus
Alnus (AL-nus)
Synonym
Alnus alnobetula
Alnus sinuata
Alnus viridis var. sinuata
Duschekia sinuata
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Deciduous
Height
20-30 ft. (6-9 m)
Spacing
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 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)
Bloom Color
Pale Yellow
Chartreuse (yellow-green)
Bloom Time
Late Winter/Early Spring
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
4.5 or below (very acidic)
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
Seed Collecting
Seed does not store well; sow as soon as possible
Regional

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Gardener's Notes:

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positive
0
neutral
0
negative
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| February 2014 | positive

Indispensible for creating quick shelter for marginal maritime gardens, wind and salt resistant. self-seeds.

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