CALENDAR OF EVENTS 

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Jul 1 @ 5:30 pm – 6:30 pm The Polly Hill Arboretum
A successful dynamic landscape requires a fully expressed ground plane planting that yields benefits that extend well beyond aesthetics, from managing stormwater to supporting pollinators and more. In this program, Patrick will review essential design[...]
Jul 8 @ 5:30 pm – 6:30 pm The Polly Hill Arboretum
Discover how to prevent tick exposure and learn effective strategies to stay safe outdoors. In this talk, PHA Horticulturalist Jack Morgan will guide you through essential tick prevention techniques, including the best clothing and repellents[...]
Jul 23 @ 5:30 pm – 6:45 pm The Polly Hill Arboretum
2026 Lisina & Frank W. Hoch Memorial Lecture In this presentation by Dr. Koen Calembeke, attendees will learn all about the Arboretum Wespelaar in Belgium, which holds a specialized collection of trees and shrubs from[...]
Aug 5 @ 5:30 pm – 6:30 pm The Polly Hill Arboretum
2026 David H. Smith Memorial Lecture Join retiring executive director Tim Boland as he reflects on his tenure at PHA growing both plants and the Polly Hill Arboretum over the last 24 years. Tim arrived[...]