Best is to use red stemmed ones.
Soak a bunch in a bucket of water untill spring time . you will notice roots growing on the bottom. Change water every 3 weeks or so. Then plant it.
The roots are very long 20 or 40 feet and can damage the foundations of a building so be careful where you plant them
Obviously they need lots of water being Arvei Nachal.
The way I’ve heard it described, the hormone provides a little boost that is used as an insurance when a cutting might need a little extra encouragement.