I have a tree which our club expert identified as a wild crabapple, definitely masus of some kind. I had topped it two years ago, and we agreed that I needed to cut off the top of the trunk by about 4 inches/10 cm or so. '
If I had been planning I would have had rooting hormones and a cup full of cutting mixture, but I didn't, and now the cutting is sitting in a cup of water. How would it work to leave the cutting in water looking for root formation? Or, take it out immediately and stick it in a cutting mixture?