Hi, new to this tread.
Where is your garden and what do you call “hot?”
Out in the yard under a big shade tree. Yeah, I know, but you make do with what you have and the tree has actually helped with the scorching heat Texas has had. Hot is constant temps over 100 and not a drop of rain since who knows when. We've not had this bad a drought since 1895. Yes, you read right, 1895. Thankfully, we're on a well so aren't limited like some around are with watering bans but the electric bill is getting hit running the pump.
I garden in East Central Mississippi - Meridian. Hot is constant mid 90’s to 100+.