How far into the season do you harvest your asparagus before you let it regenerate for the year?

I planted the asparagus 6 years ago so it’s decently established. I’m in the DC area and the asparagus patch is 20’ x 100’. It was a cold winter for this area but a very warm spring. Started harvesting april 8 this year.

Just curious how long you all harvest your asparagus before you let it go wild for the year.