air layering maples
I would like to try to do some air-layering of a sugar maple that my neighbor has, it's seed-grown but has some amazing fall color, more red than most around here.
1. What is the best time of year?
2. Hardwood or softwood? How thick of a branch can you go for?
3. Should we pick an excessively vigorous branch, a twiggy, slower-growing one, or something in between?
4. Any tips and tricks?
5. Rooting powder-yes or no?
6. Once rooted, should you cut off the "stub" of stripped branch below the newly-formed root collar as close as possible, or just let it rot away?