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American Bladdernut

Staphylea trifolia

Last reviewed: September 2026

American bladdernut is a multi-stemmed shrub that blooms in April and May with clusters of white bell-shaped flowers, doing best in part shade with medium moisture along woodland edges and stream banks.

American Bladdernut (Staphylea trifolia)
Photo: (c) Jeremy Atherton, some rights reserved (CC BY)

Toxicity unknown

American Bladdernut (Staphylea trifolia) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

medium

Size

72"–180" H × 72"–180" W

Bloom

Apr, May

Native to

AL, AR, FL, GA and 18 more states

Pollinators

bees, flies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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American bladdernut is a native shrub that produces clusters of white bell-shaped flowers in spring, followed by distinctive inflated seed pods that rustle in the wind. This woodland native thrives in partial shade and forms a rounded, multi-stemmed shrub that works well as a naturalistic screen or specimen plant.

Growing American Bladdernut

Grow American Bladdernut in part shade and medium water. Mature plants reach 72 to 180 inches tall and spread 72 to 180 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

American Bladdernut takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Very large mature size may overwhelm typical residential spaces
  • Informal growth habit lacks structured appearance
  • Unusual seed pods may be considered messy or unconventional

Wildlife value

The spring flowers attract bees and flies for nectar and pollen. The seeds provide food for birds and small mammals.

Common questions

When does American bladdernut bloom?
American bladdernut typically flowers in April and May, producing drooping clusters of small white bell-shaped blossoms before the inflated seed pods form later in the season.
What pollinates American bladdernut flowers?
Bees and flies are the main visitors to the flowers, drawn to the nectar produced during the spring bloom period.
What growing conditions does American bladdernut prefer?
This shrub grows best in part shade with consistently medium moisture, often found in the understory near streams, floodplains, and moist woodland edges.
Is American bladdernut evergreen or deciduous?
American bladdernut is deciduous, dropping its leaves in fall and leafing out again each spring.
Is American Bladdernut HOA-friendly?
American Bladdernut takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow American Bladdernut? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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