Canada Plum vs Lewis Mock Orange - TreeTime.ca

Canada Plum vs Lewis Mock Orange

Philadelphus lewisii

Prunus nigra

COMING SOON

(new stock expected: fall of 2026)

COMING SOON

(new stock expected: fall of 2026)

Lewis Mock Orange
Canada Plum

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.

Canada Plum is a cold-hardy wild plum native to North America with small red fruit. They ripen in mid to late summer, with bitter, astringent skin surrounding sweet, slightly acidic flesh that clings to the stone. While some enjoy eating the plums fresh, they are more commonly used for baking and preserves. It is considered a universal pollinizer for other plum varieties and is often used for grafting or as a rootstock.

White to pink flowers appear in spring, often before the leaves, providing an early source of nectar and pollen for native bees and other pollinators. Birds and other wildlife also feed on the fruit, adding to its ecological value. Canada Plum can grow as a small tree or large, multi-stemmed shrub. It is well suited to a variety of projects, including fruit orchards for cross-pollination, as well as pollinator plantings, naturalization, and restoration projects.

Lewis Mock Orange Quick Facts

Canada Plum Quick Facts

Zone: 4a
Zone: 2b
Height: 3 m (10 ft)
Height: 5 m (15 ft)
Spread: 2.4 m (8 ft)
Spread: 4 m (12 ft)
Light: partial shade, 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 to arching, multi-stemmed
Spreading: suckering - medium, seeds - low
Suckering: high


Fall colour: attractive yellow, gold
Bark: grey and scaly with age
Flowers: fragrant, white
Flowers: white
Bloom time: mid spring to early summer
Fruit: under 1 inch round yellow fruits with red blush to completely red, tart skin with sweet flesh
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC
Native to: MB, ON, QC, NB
Other Names: california mock orange, lewis mockorange, western mock orange, western syringa, wild mock orange
Other Names: american plum, black plum, canada plum, horse plum, wild plum