What's the lowest that is tolerable for a plant... my power died and the room dropped to 52 is that bad?? and what is the lowest temp that plants can tolerate? with out a bad effect on them thank you in advance
I'm sure it depends on the plant and other factors and no-one wants to test it. But you will be ok with 52 for a short time. If prolonged it will stop growth.
The ideal range for plant growth to flourish is between 68-76. 52 degrees for a prolonged time will stunt growth but you should be ok if it wasnt more more than a couple hours. good luck.