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Balloonvine

Cardiospermum halicacabum

Last reviewed: June 2026

Balloonvine (Cardiospermum halicacabum)
Photo: no rights reserved, uploaded by 余世文

Light

full sun

Water

medium

Size

120"–360" H × 24"–120" W

Bloom

Jul, Aug, Sep

Native to

PA

Pollinators

bees, flies

Balloonvine is a fast-growing annual vine that produces distinctive inflated seed pods resembling small balloons. It climbs by tendrils and bears small white flowers in summer, followed by the papery, three-chambered fruits that give it its name. This tropical vine can quickly cover fences, trellises, or other structures during the growing season.

In an HOA neighborhood

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

Works well in: backyard only.

  • Can appear weedy and uncontrolled
  • Aggressive self-seeding may be considered invasive-looking
  • Vine growth habit may look unkempt without constant management

Wildlife value

The small white flowers attract bees and flies during the summer blooming period. Birds may eat the black seeds contained within the balloon-like pods.

Common questions

How much sun does Balloonvine need?
Balloonvine grows best in full sun conditions.
When does Balloonvine bloom?
Balloonvine blooms in July, August, and September.
Where is Balloonvine native?
Balloonvine (Cardiospermum halicacabum) is native to PA, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Balloonvine attract?
Balloonvine draws bees and flies.
Is Balloonvine HOA-friendly?
Balloonvine takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

Not sure where to start? Take the 2-minute yard quiz