Hello, my "Ponytail" may have been damaged here in the last few days being outdoors exposed to low temps to 18 degree's (Cold). The top is now flat and all white colored instead of dark green and I will bet that all the leaves will be coming off. I am wondering if it will recouperate, or if I should top it off a few inches down, or just leave it alone and wait and see for a few months? It just has a single top sprout and one little side one down halfway of its 3' length, which still looks ok. The plant is very old and healthy otherwise, it spends Summers outside and we (mistakenly?) thought it would be ok outside now and thru the winter... why we thought that is up for speculation.. It is in the house now. Any replys appreciated! Joe