Aspirin can be used as a rooting hormone because it contains salicylic acid, which can act as an active ingredient when used on plant cuttings. The aspirin has to be dissolved in water before dipping the cutting into the solution. It is believed to have some antimicrobial features which aid in shielding the plants from bacteria and fungal infections. Apart from strengthening the health of the plant, it also helps to help speed up the growing process as well as increase yield.