A south Mississippi late May frost sounds really late to me.
I heard there have been all kinds of record lows set this spring/summer. Some were record daytime lows. There was one of those set here last week.
The frost ‘bit’ some tomato seedlings I had sitting on my driveway waiting transplant. I considered myself lucky they weren’t already out in the garden where they’d have been killed outright.
I’m reconsidering that thought. They haven’t done squat this year. Next year, IF that happens again, I’m gonna dump them in the compost pile and start over.