Increase your tree and landscape knowledge! The School of Arboriculture’s courses, which offer CEUs for arborists and landscape architects, keep you at the forefront of your profession. Our exciting new classes are open to professionals and novices, and are taught by national leaders in their field of expertise.
Collections Breed Success at the National Arboretum
Wednesday, March 21
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The Arboretum is open as usual. Click here for hours.
Please note that weather conditions can change quickly, check back or call (215) 247-5777 before heading out for a visit.
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.