Sea Buckthorn (Seaberry) vs Black Hawthorn - TreeTime.ca

Sea Buckthorn (Seaberry) vs Black Hawthorn

Hippophae rhamnoides l.

Crataegus douglasii

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Sea Buckthorn (Seaberry)
Black Hawthorn

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.

Black Hawthorn is a versatile plant that is native to wetlands and other areas with moist soils, but can also tolerate dry soils. This plant can be grown as a short shrub, or a tree reaching 30 feet tall.

Black Hawthorn is valued for erosion control and attracting pollinators. It also makes an attractive flowering ornamental that can be planted as a specimen or pruned as a hedge. It is commonly used in shelterbelts.

Sea Buckthorn (Seaberry) Quick Facts

Black Hawthorn Quick Facts

Zone: 2b
Zone: 3a
Height: 5 m (15 ft)
Height: 8 m (25 ft)
Spread: 4 m (12 ft)
Spread: 5 m (15 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: any
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: medium
Suckering: high
Suckering: medium


Foliage: slender silvery-green leaves
Foliage: contains thorns
Fall colour: yellow to red
Bark: brown to gray
Flowers: white
Berries: small, edible
Berries: purplish-black pomes
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no

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

Between row spacing: 5 m (16 ft)
Other Names: sallowthorn, sandthorn, seaberry
Other Names: crataegus columbiana, douglas hawthorn, douglas' thornapple