I have done some looking around on the web regarding propagating a Crepe Myrtle we have in our yard. The tree has to be 20-25' tall. I've read to take cuttings from the newer growth and haven't been able to definitively find instructions that are detailed enough for me to feel comfortable doing it. I have bought some rooting hormone powder.
Additionally, we are hoping to propagate some cuttings to move to a new home we are building that won't be completed for nearly 9 months. The tree in our current location yard is blooming, presently, on one side but not on the other that is somewhat shaded. My specific questions are thus:
1. If I cannot reach the 'new growth' or cannot identify the 'new growth', can I just take a cutting pretty much anywhere within 8-10" of the end of a branch, below the closest node, dip it in the hormone powder and place in the growing medium? I've read cuttings should be taken in the spring, but we don't have that option - how much does this matter? I've also seen pictures of others who have done cuttings and they are most often green - our tree is quite woody near the ends of the branches as it's well established...
2. Does it matter how thick the branch is that I cut? Since we'll want something relatively substantial in the next 9 months or so, I'm thinking a larger cutting might revive faster assuming we pull it off...
3. Does it matter that the cutting would have blooms on the end of it? Or should I take it from the non blooming side knowing that it will bloom soon (or most likely not since we'll be cutting it...)
4. Would I be better served by doing the air layering method and focusing on a larger portion of the tree, maybe a branch that is 3' long to tip and has more nodes beyond the cutting so that it's a more established tree once it has rooted and can be cut?
Thanks in advance for any specific advice.