From their event page: 

This spring, show your favorite neighborhood park some love! Love Your Park Week is a nine-day celebration of Philadelphia’s public parks from May 11-19, 2024.

In partnership with Philadelphia Parks & Recreation and Fairmount Park Conservancy, Park Friends Groups across the city will be hosting events & volunteer cleanups for Love Your Park Week 2024.

Over 100 Philly parks need help tending gardens and flower beds, caring for trees, and cleaning up our parks after the winter season.