I've never used a chemical to flush the chemicals out of the soil, but I do a final flush with two to three times the pot volume, with properly ph'd water. My wellwater ph is 8.0, so I avoid using it for anything unless it's adjusted. It doesn't take long to form nanners at this stage, and risking them because I was too lazy or too cheap to adjust my wellwater is potentially counter-productive in my book. The risk is not worth the 5 cents it costs for me to use my phDown.

Cannabis is an annual, and I believe that if you are doing it right the roots never stop growing.
Rusty Trichome Reviewed by Rusty Trichome on . i know I should know this.... I'm wondering how to go about a pre-harvest flush for my girlz. I've had a number of sucessful harvests already using a hydro set up. In hydro I do a four day "flush" ,changing the solution daily, or if possible twice daily. Strains in this harvest are : Big Buddah Cheeze and Power plant. They both list their grow period as 8-9 weeks. Over the course of growing hydro (cool temps) I've found my harvest window to be consistently 60-63 days. Now, this is the first run of using a soil Rating: 5