Special Hours

The U.S. Botanic Garden Conservatory will close at 3 p.m. on Tuesday, December 6, due to an official government function. The Conservatory will return to normal hours December 7.

St Louis red poinsettia

Plant Botanical Name: 
Euphorbia pulcherrima
Plant Sub Species or Variety: 
St. Louis Red

This was the poinsettia grown throughout the United States and Europe until around 1920. It was first marketed as the St. Louis red poinsettia by Louis Bourdet of St. Louis, Missouri, around 1924.