Washington Hawthorn vs Red Alder - TreeTime.ca

Washington Hawthorn vs Red Alder

Alnus rubra

Crataegus phaenopyrum

CUSTOM GROW

CUSTOM GROW

Red Alder
Washington Hawthorn

Red Alder is a fast-growing deciduous tree native to western North America. Through its nitrogen-fixing roots and nitrogen-rich leaf litter, Red Alder improves soil fertility and supports the growth of surrounding plants. This makes it especially valuable on disturbed sites following logging, construction, or fire. A classic pioneer species, it often colonizes bare ground and enhances conditions for longer-lived conifers to follow.

Red Alder stabilizes soils on streambanks and disturbed slopes, reducing erosion and aiding restoration. It also supports wildlife: birds and small mammals eat the seeds and buds, deer and elk browse the foliage, and bees are drawn to the pollen-rich catkins in spring.

Red Alder also has commercial importance, with its strong yet workable wood widely used for furniture, cabinetry, veneer, and pulp. The tree takes its name from the rusty-red color the bark turns when cut or bruised.

Washington Hawthorn is an attractive ornamental shrub that is dense enough to plant as a privacy screen. It produces clusters of white blooms in late spring to early summer.

Washington Hawthorn's red berries last throughout winter, bringing squirrels and birds to your property. In the fall, its foliage turns beautiful orange, scarlet, or purple.

One of the most overlooked trees on the prairies. This tree is often used as rootstock, a wildlife attractor, or a boulevard hedge. Give this one a second look.

This species is also known as one of the more salt-tolerant species for those with saline soils.

Please note: this plant is poisonous to dogs.

Red Alder Quick Facts

Washington Hawthorn Quick Facts

Zone: 5b
Zone: 3a
Height: 15 m (50 ft)
Height: 6 m (20 ft)
Spread: 9 m (30 ft)
Spread: 4 m (12 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: any
Growth rate: fast
Growth rate: medium
Life span: medium
Life span: medium
Growth form: upright, rounded to conical
Spreading: seeds - medium, stump sprouting - medium
Suckering: none


Fall colour: orange, scarlet or purple
Bark: smooth, grey
Flowers: white flowers in spring
Berries: small, red
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


In row spacing: 0.9 m (3 ft)
Between row spacing: 5 m (16 ft)
Native to: BC
Other Names: oregon alder, pacific coast alder, western alder
Other Names: washington thorn