Who would be most likely to use rooting compound?

Rooting compound is used when propagating plants from cuttings. It stops the cut you make from healing and also prevents fungi, bacteria and viruses from affecting the plant. The rooting hormone that is used in these compounds is normally from the willow plant. It's called IBA (indolebutyric acid) which belongs to the Auxin family and it helps stimulate root growth in plants, which is particularly important when you are propagating plants from cuttings. Rooting hormones can come in powder or gel form. Some contain not only the hormone IBA, but also vitamins and nutrients to assist with early root growth, and sometimes also fungicides to protect the cutting.