Brown powdery stuff growing on soil?
I planted a whole bunch of redpepper seeds in multiple containers. Some of those containers were from cut up juice boxes. One of them, just one of four planted in a juice box is growing at the same rate but there is this brown powdery substance on the surface of the soil. I thought maybe it was residue from the iced tea in the box so i cleaned it out and replaced the soil and replanted in the same box. A few days later the brown stuff is there again. It sort of looks like powdered ice tea and when I water the plant some of the brown powder floats up into the air.