I do not deal with hot days often, very thankfully this year. The few in succession that we have had, while the plant is still in Veg, I will mist them in the morning, run home from work at lunch (not many are as privileged) mist again, and then water them in the evening. If it is still hot into the evening I will mist again, only stopping when the temps start dropping. (This is a remedy for my area, shade is a great remedy for all).