You can put in the soild when ya mix, but ya use it at such small amounts, it's difficult to get it fully mixed. I think water is the best way to use it. BAS has an extracted form of the part that acts as the natural surfactant. I just don't know if it's ok to use in a watering system.Yeah I am thinkin of using a little yucca. Because I go through a dry cycle on my watering I wanna make sure when I do water after a dry cycle that it gets the whole pots saturated I haven’t ever used I though. Do I put it in the water or the soil lmao!