An annual series of lectures held from late fall to early spring that explore a wide variety of fascinating topics. Lectures are supported in part by the Klein Lecture Endowment given in memory of Dr. William M. Klein who served from 1977-1990 as the Arboretum’s first full-time director, the Laura L. Barnes Lecture Endowment of The Philadelphia Foundation, given in memory of Laura Barnes by students and alumni of her school of horticulture, and the Byron Lukens Lecture Endowment, given in memory of educator and Arboretum volunteer, Byron Lukens and his wife Elizabeth.
Dr. Richard Olsen, Director of the U.S. National Arboretum
WEDNESDAY, DECEMBER 5 | 2:00 pm
Join us for an engaging lecture with Dr. Richard Olsen, Director of the U.S. National Arboretum. One of the world’s premier woody plant research facilities and public gardens, the National Arboretum has developed superior plants through genetic improvement, evaluation, and selection, thereby contributing to diverse and sustainable American landscapes. Learn about its valuable collections, its important collaborations with peers such as Morris Arboretum, and how exciting new ventures will continue to expand the relevance and impact of the National Arboretum.
The Klein Endowed Lecture is presented annually in memory of Dr. William M. Klein who served as the Arboretum’s first full-time director from 1977-1990.
As part of our commitment to historic preservation, the beloved Log Cabin flooring is being replaced this week, and the Log Cabin will be closed from Wednesday, October 3 - Friday, October 5.
The Arboretum is open as usual. Click here for hours.
Garden Railway trains are not running Saturday, September 8th and Sunday, September 9th due to inclement weather.
Please note: The Rose Garden is closed for maintenance every Thursday morning until noon.
Weather conditions may limit garden access to certain features even if the garden is open – please check the web site or call (215) 247-5777 for updates before visiting. Our visitors’ safety in the garden is our top priority. Therefore when inclement weather is predicted, we will make decisions about closing the garden accordingly.