I just bought some powder rooting hormone from Home Depot (Shultz brand).
Neither the bottle nor the box has any directions as to how to use this.
Last year I cloned a bunch of plants in the fall by just sticking them in
water and for the most part it worked. I wanted to try the rooting
compound this year.

After dipping the cuttings in the compound do I stick it in a glass of
water or should I just stick the cutting in potting soil?