I am anxious to start some air layers. It has stayed unusually warm so far this fall. My question is if I start air layers now, how long does it typically take to get a nice root ball established. I was thinking of doing them now and then "harvesting" in March or April. The next big concern is if I start air layering now, the tender roots being established are above ground getting exposed. If I get a pretty decent cold front for a few days say in the upper 30's F to low 40's F, will this kill back the roots? I don't want to waste my energies (time) and also stressing the crotons if this would be the case. Also, which cultivars are slow to establish via air layering? I am sure there are quite a few. Some input from you old timers is most welcome here! Ron.