I took some cottonwood cuttings this winter that I plan on planting in a wet area on the side of my property. I know a lot of people don't like this tree. Currently they are in a bucket of water. Excuse the basic questions.
1. Will the roots come from the center or the green part under the bark? I didn't do well in science.
2. How long should the roots be before I plant them in the ground?
3. Should I plant them extra deep with only a bit of the branch above grade or just a few inches in?
The cuttings are about 3/8" in diameter, 24" long on average.