red alder (Alnus Rubra) - Shade trees

Grow conditions

Sunlight

Full sun, Partial sun

Hardiness zone

5-9

Minimum temperature

−20°F (−29°C)

Soil type

Clay, Loam, Sandy, Well-drained, Moist

Soil pH

Acidic, Neutral

red alder

Alnus Rubra

Grow conditions

Sunlight: Full sun, Partial sun
Hardiness zone: 5-9
Minimum temperature: −20°F (−29°C)
Soil type: Clay, Loam, Sandy, Well-drained, Moist
Soil pH: Acidic, Neutral

Plant traits

Mature height60 ft-100 ft

Mature width15 ft-40 ft

Plant typeShade trees

Bloom seasonSpring

Foliage typeDeciduous

Tolerance & safety

Drought tolerant❌No

Fire tolerant⚖️Moderate

Pet safe—Safe

Deer resistant❌No

Pollinator-friendly—Bees

red alder (Alnus Rubra) - Shade trees

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red alder (Alnus Rubra) - Shade trees

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