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

Sea Buckthorn (Seaberry) vs Grey Alder

Hippophae rhamnoides l.

Alnus incana

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Sea Buckthorn (Seaberry)
Grey 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: Sea Buckthorn is dioecious, meaning male and female flowers grow on separate plants. Both are required for fruit production, though only female plants bear fruit. A plant’s sex typically cannot be identified until its third or fourth year. Our seedlings are too young to determine their sex.

River Alder is a large shrub or small tree with a multi-stemmed, spreading habit. It is an excellent tree to plant if you want to stabilize the soil near rivers and creeks.

Unlike the other alder varieties, River Alder is attractive enough to be included in riverside plantings by municipal and provincial park organizations.

Note: We use Grey Alder for Alnus incana. This species is also known by many other common names, including River Alder, Speckled Alder, and others. Please confirm the scientific name to ensure you are ordering the correct plant.

Sea Buckthorn (Seaberry) Quick Facts

Grey Alder Quick Facts

Lowest Price: $1.29 - SAVE UP TO 82%
Zone: 2b
Zone: 1a
Height: 5 m (15 ft)
Height: 8 m (25 ft)
Spread: 4 m (12 ft)
Spread: 4 m (12 ft)
Light: full sun
Light: full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: short
Suckering: high
Suckering: none


Foliage: slender silvery-green leaves
Fall colour: yellow to orange
Fruit: small catkins
Berries: small, edible
Cones: small brown cones
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: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: sallowthorn, sandthorn, seaberry
Other Names: hoary alder, river alder, speckled alder