Showy Mountain Ash vs Empress Tree - TreeTime.ca

Showy Mountain Ash vs Empress Tree

Paulownia tomentosa

Sorbus decora

Empress Tree
Showy Mountain Ash

The Empress Tree is a fast growing, ornamental shade tree. It has purple, fragrant flowers that are quite attractive. The flowers emerge before the leaves in early spring. The leaves of this tree can grow very large, up to 30 cm long.

As one of the fastest growing trees in the world, this tree has been given considerable attention for carbon sequestration projects. It drops many seeds which can make it invasive in warmer climates. Please do some research and plant the right tree in the right place.

The Empress tree’s genus name comes from Princess Paulowna, daughter of Tsar Paul I of Russia.

Showy Mountain Ash is a hardy accent tree. It features pretty clusters of white flowers in spring followed by bright scarlet berries lasting into winter.

Great for small landscapes, Showy Mountain Ash is adaptable to both dry and moist locations, and it is suitable for average home landscape conditions.

Empress Tree Quick Facts

Showy Mountain Ash Quick Facts

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Zone: 5a
Zone: 2a
Height: 9 m (30 ft)
Height: 12 m (40 ft)
Spread: 9 m (30 ft)
Spread: 3 m (10 ft)
Light: full sun
Light: any
Moisture: normal
Moisture: normal
Growth rate: very fast
Growth rate: fast
Life span: medium
Life span: medium
Suckering: medium
Suckering: low


Fall colour: reddish-orange
Flowers: light purple
Flowers: white, showy clusters
Berries: redberries in bunches
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: SK, MB, ON, QC, NS, NB, NL
Other Names: chinese empress tree, foxglove tree, princess tree, royal paulownia
Other Names: dogberry