I had Miracle Grow potting mix unopened bag outside on my patio. I had repotted all my plants today but I noticed that the soil was moist and wet. How did it get wet ? Then I noticed little pin holes all up and down the side maybe for the dirt to breathe. Then when I was done with all my plants I was thinking with the sun beating down on it all month long and the rain that we've had all month that I just open up a bag that was full of mold and put moldy dirt in my plants?