I don’t know anything about PPM. I just top dress with organic ingredients once a month and Compost tea with mycos worm castings and blackstrap molasses every two weeks. Everybody gets the same regiment.
Hello Bill, somehow my outdoor plans got white, powdery mildew, I just sprayed with some Neem oil ,hopefully that will take care of it. Probably my fault because I was just watering everything like it was raining instead of just watering the soil around the base of the plants.
Indoors the sour...