I am looking for a garden location to host an anniversary party for my parents. Where should I look?
Here are two web sites you should look at:
This site gives you a list of public gardens and arboreta in this area. Narrow down your choices, based on location and visit the individual web sites for space rental information.
This is a database managed by the Greater Philadelphia Cultural Alliance for its members. Search the SpaceFinder database under the “special events/parties” category and you will find plenty of space rentals.