An ideal cutting is at least pencil thickness with 3 nodes. Some people do fine rooting 2 or even 1 node cuttings, but more nodes make for good material. Wood should be fully lignified (brown) and solid when squeezed to store the best. Green cuttings will root, too, but won’t store well. Moldy cuttings might root if you can clean them up and remove rotten wood, but don’t hold out too much hope. Anything that has been frozen is not a good cutting. Frost to remove the leaves is fine, but a freeze will likely have damaged the wood.
