Oregon Grape vs Lewis Mock Orange - TreeTime.ca

Oregon Grape vs Lewis Mock Orange

Philadelphus lewisii

Mahonia aquifolium (Berberis aquifolium)

COMING SOON

(new stock expected: fall of 2026)

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Lewis Mock Orange
Oregon Grape

Lewis Mock Orange is a flowering ornamental shrub that produces an abundance of white, fragrant blooms. The flowers have a sweet scent similar to orange blossoms, with a hint of pineapple. They bloom for several weeks from late spring to early summer, attracting pollinators and other beneficial insects.

Native to North America, Lewis Mock Orange is found from the southernmost portions of Alberta and British Columbia, and south into the northwestern United States. It makes an attractive shrub and can be used in hedgerows, pollinator gardens, and naturalization projects. Blooms occur on the previous year’s wood, so it is recommended to prune after it has finished flowering.

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.

Lewis Mock Orange Quick Facts

Oregon Grape Quick Facts

Zone: 4a
Zone: 5a
Height: 3 m (10 ft)
Height: 1.5 m (5 ft)
Spread: 2.4 m (8 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: shade, partial shade
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: long
Growth form: upright to arching, multi-stemmed
Spreading: suckering - medium, seeds - low
Suckering: medium
Maintenance: medium


Fall colour: bright red to deep burgundy
Flowers: fragrant, white
Flowers: yellow
Bloom time: mid spring to early summer
Berries: blue to purple, large
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC
Native to: BC
Other Names: california mock orange, lewis mockorange, western mock orange, western syringa, wild mock orange