Q.what is the safest temperature to uncover plants
After a really hard 6 hr freeze, what is the safest temperature when freeze is over to uncover plants? From 1 am – 9 am, the temperature was between 27-32 degrees. It is now 41 degrees and I haven’t uncovered my plants, yet it’s 9:30 am. I’m on my way out to uncover them now but will they be ok?
Generally, you want to uncover your plants early in the morning, to avoid condensation under the covering. If your plants can't take temperatures of 40F, they're probably pretty tender, and will need more elaborate cold protection. Here are a couple of articles with ideas on cold protection: https://www.gardeningknowhow.com/plant-problems/environmental/protect-plants-in-freeze.htm
https://www.gardeningknowhow.com/plant-problems/environmental/protecting-plants-winter.htm