Russian Mountain Ash vs Lewis Mock Orange - TreeTime.ca

Russian Mountain Ash vs Lewis Mock Orange

Sorbus aucuparia Rossica

Philadelphus lewisii

NOT AVAILABLE THIS SEASON - MIGHT RETURN

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Lewis Mock Orange

The Russian Mountain Ash is a stunning ornamental tree with the perfect pop of colour. It bears white flowers in the spring and gorgeous orange berries in the fall. Birds enjoy the berries that persist into the winter. It grows tall and can thrive in an urban setting making this an attractive ornamental tree for your landscaping project.

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.

Russian Mountain Ash Quick Facts

Lewis Mock Orange Quick Facts

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Zone: 2a
Zone: 4a
Height: 9 m (30 ft)
Height: 3 m (10 ft)
Spread: 5 m (18 ft)
Spread: 2.4 m (8 ft)
Light: full sun
Light: partial shade, full sun
Moisture: any
Moisture: dry, normal
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: medium
Growth form: upright to arching, multi-stemmed
Spreading: suckering - medium, seeds - low
Suckering: none


Bark: shiny grey
Flowers: showy white
Flowers: fragrant, white
Bloom time: mid spring to early summer
Berries: orange-red
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


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