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Red Alder

Alnusoregana

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Family

Betulaceae (beh-tyoo-LAY-see-ee)

Info

Genus

Alnus (AL-nus)

Info

Species

oregana (or-reh-GAH-nuh)

Info

Synonym

Sun Exposure

Sun to Partial Shade

Light Shade

Partial to Full Shade

Foliage

Deciduous

Height

30-40 ft. (9-12 m)

over 40 ft. (12 m)

Spacing

20-30 ft. (6-9 m)

Hardiness

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)

Danger

Unknown - Tell us

Bloom Color

Unknown - Tell us

Bloom Time

Unknown - Tell us

Other Details

Gardener's Notes:

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positive

neutral

negative

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berrygirl

Lakemont, GA (Zone 8a) | March 2007 | neutral

Alnus oregona (rubra) RED ALDER Dec (z7) (WNa,Cut)
"One could not ask for a lovelier sylvan presence"(Peattie); large NW tree whos...Read More

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