My first grow and it's outdoors, it's starting to get cold outside and I'm pretty sure my plant is still not ready to be harvested. I'm concerned that it's going to die before it's ready to be harvested. The leaves are still green except for the leaves growing out from the flower areas. Those have mostly all died, shriveled up and turned brown. Is this kind of behavior normal? I'm just not sure if I should let it keep going or just call it a day and harvest what I have now.