Hey all, I'm from up in Maine where we don't have a ton of heat. I just thought I would mention this propagation method that is working really well for me. I have tried heat pads (mold issues), I tried the out of direct light (yeah that's bs plants need light), I have taken fresh in spring and potted immediately with only beeswax to seal and that worked 60%, humidity always bred mold for me.
This method is in a bag, I fold a paper towel to a width of 2 inches, soak it, wring it a little and then cut in half. One piece goes under the cutting like it was sitting in a "U" the other wraps around. I put them in their zip lock bag under grow lights with heat 75-85 degrees Fahrenheit. I seal the first day to blast humidity and pop the nodes open, then crack it open the second after 24h. Top of cuttings faces the opeing of the bag.
They will often make many roots before leaves, so you have to judge how long you can leave them in the bag without drying out the roots. The same goes if you have one with lots of leaf growth, leave too long and the leaf drops and molds a little. I have done this a few times now this season and I get almost all cutttings to start roots and or leaves. Not all make it once you pot them but this batch I am going to to to bury completely those ones with leaves but no roots (if any appear) and see if that makes a difference. All in all, the fastest cuttings are all done in a week and the slowest in two. This was done with dormant cuttings, I don't know how the results will be for fresh. I know some people say to leave the bottom half inch of a cutting bare so it callouses and doesn't mold, but frankly the entire cutting will make roots sometimes (yup 8" of roots bud length to 1/2" in 3 days) so what is the point? If you don't pot the tree in time and cant remove the paper towel without destroying or damaging roots, just pot it. I potted one with its towel and its doing great. A big problem I have had with my cuttings is that they often take too long to begin growing and I lose a fair amount to dessication or bark rot in the process. I much prefer that 90% take in two weeks and in less than a month those that cannot make it self select.
Before I forget! I thought of this method because I ordered cuttings from overseas that came wrapped as I described, when I opened that package all three had leaves! I was amazed, but unfortunately should have left them in the bag a few more days to develop roots. All in all, I am glad it happened because its really improved my propogation and my enjoyment of the process!
Thanks for reading!
-Devin