Whats
air layering uses for?
Air layering is more common with trees... you cut around the branch, then cut around it again about 3 inches away from the first... cut a line between the 2 and peel off the strip of bark layer...
you can use rooting compound, but it is not necessary... mix up a wet ball of soil mixed with spaghnum moss and squeeze it around the wound... squeeze it tight so excess water runs out and wrap it in saran wrap or plastic with string.
once the roots grow through the mossball into the plastic and you can see them well, the whole branch is cut off just below the roots and re-buried...
trees are done this way, and I've seen giant clones from
air layering.... not my pics, but this cat is turning one tree into a whole run ready to go in short order....