Sea Buckthorn (Seaberry) vs Red Alder - TreeTime.ca

Sea Buckthorn (Seaberry) vs Red Alder

Hippophae rhamnoides l.

Alnus rubra

COMING SOON

(new stock expected: fall of 2025)

CUSTOM GROW

Sea Buckthorn (Seaberry)
Red Alder

Sea Buckthorn, aka Seaberry, is a nitrogen fixing shrub that produces attractive berries high in vitamin C.

While we can't confirm claims that the berries are effective in treating various ailments, many people believe consuming the berries helps with arthritis, infections, and asthma, among other things.

Sea Buckthorn plants have attractive pale silvery-green leaves, dense branches, and large thorns, people like to grow in ornamental hedges or as a first row in a shelterbelt.

Note: these plants typically reach maturity and make their sex easily known (females producing fruit) in their 3rd or 4th year of growth. Our seedlings are too young to identify their sex.

Red Alder is a fast-growing deciduous tree native to western North America. Its fixes nitrogen, which enriches soils and supports the growth of surrounding plants. Ideal for sites with poor soil conditions, or areas disturbed by logging, construction or fire.
It provides shade in riparian areas, creating cover for fish. Its seeds and buds are eaten by birds and small mammals, while the foliage provides browse for wildlife. The catkins release clouds of pollen attracting bees and other insects.
The Red Alder gets its namesake from the rusty-red color the bark turns when bruised.

Sea Buckthorn (Seaberry) Quick Facts

Red Alder Quick Facts

Zone: 2b
Zone: 5b
Height: 5 m (15 ft)
Height: 15 m (50 ft)
Spread: 4 m (12 ft)
Spread: 9 m (30 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: medium
Growth form: upright, rounded to conical
Spreading: seeds - medium, stump sprouting - medium
Suckering: high


Foliage: slender silvery-green leaves
Bark: smooth, grey
Berries: small, edible
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes

In row spacing: 0.9 - 1.2 m (3 - 4 ft)

Between row spacing: 5 m (16 ft)
Native to: BC
Other Names: sallowthorn, sandthorn, seaberry
Other Names: oregon alder, pacific coast alder, western alder