a question put a twig of acer palmatum in the water this micro-root appearance will take root as you can see in the photo
Good evening, I'm afraid the success rate for rooting maple cuttings from placing in water is very low indeed. Although last year a forum member was successful. It is always worth a try if you have a lot of spare cuttings, but the preferred way is from grafting, air layering and hydroponics the latter is very interesting and a member @zfrittz has shown us all the intricate process on the forum.
Very unlikely. Actually, it's an understatement : you have 1 chance to about a million, especially with "cuttings" that are more than 3 mm thick. Summer cuttings (from the beginning of June to late August) have a very good chance (up to 95% for the plain species of Acer palmatum) to take with wood 3 to 15 month old, Late winter cuttings (a few weeks before the tree buds out) can be taken with more thick branches, I'd say 5 mm, but the rate of success is much lower : 10 to 15% from my experience. This being said, it can work, but it's very unlikely...
I am sure J @zfrittz will see this and reply. But if not, as I know he is very busy at the moment, here is a link to look at. Cloning of maple cuttings in hydroponics
This link to a thread you may find very interesting. Percentage wise is often very different with different people as you will see. Propagation: - Easy summer grafting technique for Japanese Maples