Flushing???

[Gnashin]

First grow had a question. I have only used water with soil for my grow, I'm guessing i do not have to flush? And should i stop watering at some point or water till harvest?

 

[HazeOil]

if the plants are still dark green i would flush them forsure..

they should be yellowing out big time.. IF u have a ppm meter , test the run off to see how many ppm is still in the soil.. if its too high , flush it

 

[Gnashin]

What is a good ppm. thanks

 

[HazeOil]

i think under 200ppm is good..
i personally bring mine under 100ppm..
the smoke and extracts are much more enjoyable