Black Hawthorn vs Oregon Grape - TreeTime.ca

Black Hawthorn vs Oregon Grape

Crataegus douglasii

Berberis aquifolium (Mahonia aquifolium)

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Black Hawthorn
Oregon Grape

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.

Oregon Grape is an evergreen shrub native to North America, found along the Pacific coast. In spring, the bright golden-yellow flowers appear in clusters above the leaves. These flowers eventually give way to edible blue berries in late summer. While not a true grape, the berries appear grape-like due to their colouring and clustered growth. They can be eaten fresh, but the sour taste and high amounts of natural pectin make them well suited for preserves.

The Oregon Grape has leaves that are glossy, leathery, and spiny-edged. This feature gives it its alternate name of Holly-leaved Barberry. When the leaves emerge in the spring they are a bronze-red colour. In the summer they transition to green, followed by bright red to deep burgundy in the fall. Leaves are retained throughout the winter and colder temperatures cause the leaves to turn purplish bronze, providing year round interest to the landscape.

Black Hawthorn Quick Facts

Oregon Grape Quick Facts

Zone: 3a
Zone: 5a
Height: 8 m (25 ft)
Height: 1.5 m (5 ft)
Spread: 5 m (15 ft)
Spread: 0.9 m (3 ft)
Moisture: any
Moisture: normal, wet
Light: partial shade, full sun
Light: shade, partial shade
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no
Fall colour: yellow to red
Fall colour: bright red to deep burgundy
Berries: purplish-black pomes
Berries: blue to purple, large
Flowers: white
Flowers: yellow
Bark: brown to gray
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: long
Maintenance: medium
Suckering: medium
Suckering: medium




Other Names: crataegus columbiana, douglas hawthorn, douglas' thornapple