Opening/ Closure Status

All outdoor gardens are currently open. The Conservatory and public restrooms remain closed, due to the closure of the U.S. Capitol campus buildings. Please monitor for updates on operating status. USBG resources can be accessed online, including educational materials, virtual tours, and online programs by visiting

Balloon plant

Magic carpet balloon flower
Plant Botanical Name: 
Gomphocarpus physiocarpus
Plant Sub Species or Variety: 
'Magic Carpet Yellow'
USBG Plant Location: 
National Garden
Full sun
Plant Soil Type: 
Most garden soils
Plant Moisture Requirements: 
Low to dry conditions

This native southeast African plant is a wonderful butterfly plant. Its clusters of white flowers are insigificant but the light green balloon-like seed pods make it a great plant for a border and as a cut flower. It can be an agressive self seeder so care should be taken. It is most commonly sold as Asclepias physocarpus.

National Garden Room Location: