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 www.USBG.gov for updates on operating status. USBG resources can be accessed online, including educational materials, virtual tours, and online programs by visiting www.USBG.gov/AtHome.
Opening/ Closure Status
Holywood
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PDFPlant Botanical Name:
Guaiacum santum
Plant Threat Level:
Endangered
Guaiacum sanctum or Holywood is a less valuable but rarely distinguished from "lignum-vitae" or G. officinale. Native to the Caribbean, Central America and Florida with few remaining populations, the species is all but extinct and extremely rare across its native range.