Washington Hawthorn vs Lewis Mock Orange - TreeTime.ca

Washington Hawthorn vs Lewis Mock Orange

Crataegus phaenopyrum

Philadelphus lewisii

CUSTOM GROW

COMING SOON

(new stock expected: fall of 2026)

Washington Hawthorn
Lewis Mock Orange

Washington Hawthorn is an attractive ornamental shrub that is dense enough to plant as a privacy screen. It produces clusters of white blooms in late spring to early summer.

Washington Hawthorn's red berries last throughout winter, bringing squirrels and birds to your property. In the fall, its foliage turns beautiful orange, scarlet, or purple.

One of the most overlooked trees on the prairies. This tree is often used as rootstock, a wildlife attractor, or a boulevard hedge. Give this one a second look.

This species is also known as one of the more salt-tolerant species for those with saline soils.

Please note: this plant is poisonous to dogs.

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.

Washington Hawthorn Quick Facts

Lewis Mock Orange Quick Facts

Zone: 3a
Zone: 4a
Height: 6 m (20 ft)
Height: 3 m (10 ft)
Spread: 4 m (12 ft)
Spread: 2.4 m (8 ft)
Light: partial shade, 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


Fall colour: orange, scarlet or purple
Flowers: white flowers in spring
Flowers: fragrant, white
Bloom time: mid spring to early summer
Berries: small, red
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no

In row spacing: 0.9 m (3 ft)

Between row spacing: 5 m (16 ft)
Native to: AB, BC
Other Names: washington thorn
Other Names: california mock orange, lewis mockorange, western mock orange, western syringa, wild mock orange