US National Arboretum

The 34th Annual Lahr Symposium returns with its tradition of presenting subject matter experts on ecological, botanical, and horticultural advancements in a daylong program. Join us as we adapt to the past year of monumental change with this online event hosted by Arboretum staff. The invited speakers will join us live to present on current …

Native Plants: Forces for Conservation & Community The 35th Annual Lahr Symposium brings together subject matter experts on ecological, botanical, and horticultural advancements in a daylong program. Join us at this online event hosted by Arboretum staff. This year’s program will highlight the role of public gardens in native plant awareness and explore research on …