Green Ash vs American Bladdernut - TreeTime.ca

Green Ash vs American Bladdernut

Staphylea trifolia

Fraxinus pennsylvanica

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American Bladdernut
Green Ash

American Bladdernut is a fast-growing, ornamental shrub native to eastern North America. It can be grown as a large shrub or trained as a small tree. The small, drooping, white flowers are bell-shaped and grow in clusters. They appear in mid to late spring, attracting various pollinators. Well suited as an understory plant as it prefers shady and partial sun location with moist soils.

The blossoms mature into papery seed capsules and have been described as miniature Japanese lanterns. They are commonly used in dried flower arrangements. The seeds found within the pods are edible, and have a taste similar to pistachios. They can be eaten raw, used in baking or made into a sweet cooking oil.

Care should be taken when planting American Bladdernut, as it can spread quickly. It is prone to suckering and will self-seed. Plant the right tree in the right place.

Green ash is a fast growing tree with incredible golden yellow leaves in fall. This tree is native to the prairies and is well suited for drought and cold. Green ash can also tolerate soil compaction, periods of flooding and a wide variety of soils including alkaline. This makes green ash ideally suited for use in urban environments.

American Bladdernut Quick Facts

Green Ash Quick Facts

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Zone: 3a
Zone: 2b
Height: 4 m (12 ft)
Height: 18 m (60 ft)
Spread: 5 m (15 ft)
Spread: 12 m (40 ft)
Light: shade, partial shade
Light: full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: long
Life span: long
Suckering: medium
Suckering: low


Fall colour: bright yellow in early fall
Flowers: white
Seeds: seeds located within samaras
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


In row spacing: 1.8 - 2.4 m (6 - 8 ft)
Between row spacing: 5 m (16 ft)
Native to: ON, QC
Native to: AB, SK, MB, ON, QC, NS, NB, PE
Other Names: downy ash, red ash, swamp ash, water ash