How long before a concert do they open the doors

I was there for a concert that starts at 7pm and the gates opened at 4:30pm. Started lining up before the gate at 2:30 though.

Jennifer, people will arrive at 10AM and get in line for general seating! Theyll spend the day picnicking on the lawn tasting wine, doing the tour etc. The lines get long by 4PM. The doors usually open at 5 for a 7 o'clock show.

2 hours. People begin lining up early.

Depends, sometimes 1 or 2 hours prior.