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

Pink lady-slipper

Plant Botanical Name: 
Cypripedium acaule
USBG Plant Location: 
Not in Bloom
Some shade
Plant Soil Type: 
Acidic loamy soil
Plant Moisture Requirements: 
Plant Threat Level: 

Pink lady-slipper has a range from Newfoundland to Saskatchewan south around the Great Lakes through the southern Appalachians and is mostly found in dry acidic soils under decidous and evergreen trees. Although prevelant in much of its range, it is protected in Georgia, Illinois, New York and Tennessee due to urban sprawl and agriculture.