Question
Picked up a redwood burl for my daughter in California on vacation.  It was doing great on our trip home until we left it in a HOT car.  Now nothing is growing and it has a white mold on it.  Did we kill it or is there still a chance?
Thank you

Answer
Yes these are living organisms and if left in a hot car the temperature in the summer will cook them. Placing plants in a car and leaving the car shut up, the temperature will rise and destroy the plant in a short period of time. Temperatures inside the car can easily reach 130F + on hot days.
I would say you baked the burl. Sorry!