H.A.F.
a.k.a. Rusty Nails
I lost most of the tomatoes I had. Ran out of room and patience and wasn't up-potting them (they get dirt, not my soil LOL) and put them out beginning of March. 2 weeks later below 20 for one night. I covered everything and it made no difference. I had a few that were extras that I was able to bring inside so I have a good selection out there but not the jungle I wanted.Dang I am jealous I still have snow in the yard drove thru a snowstorm yesterday and your talking dandelions clover and lawnmower Sign me up!
I need to look back through here and see when I dropped those and wait a month next year. Pretty sure I dropped it all on New Years. I can still pick up a few starters from the hardware store if I need to.
But the period of time around that "hard freeze" was about 8 hours. I planted the replacements two days later after I was sure nothing was going to survive. Definitely bearable.