Summer Concerts at Boerner, when can I arrive?

You can come park anytime, but the concert doesn’t start until 6:30 PM (or later if indicated) 

Admission to The Boerner Botanical Gardens to attend the summer concerts is free. Attendees are welcome to walk through the gardens after 6:00 p.m. at no additional cost.

https://www.wimmercommunities.com/about-us/concerts-in-the-gardens/