VPD + Humidity during flowering

[dec0der]

Hi, new grower here. Indoor, in organic soil. I'm on day 36 of my auto-flower grow and entering the flowing stage. I had a question about VPD + Humidity during flowering. It says to keep humidity between 40-50% during flowering stage. The VPD Chart says to keep humidity at 65% when running a temp of 80F.

I do not want to get mildew or mold. When my plants are in VPD specs plants are doing very well. I'm confused if I should follow the VPD chart, or keep my humidity between 40-50% to avoid any moisture issues. My PPFD is around 450. DLI between 25-30.

What to do? Thanks in advance.

 

[Lil Dab]

I don't let my Rh get that high I keep it in the upper 40-50's and try to lower the temps the best I can not always possible though

 

[JP1]

I like it dry as I can get it in flower. So 40-50%, and I just lower my temp around 70