First tent grow

[Intadimensionaldisco]

Have a look at the VPD chart below. It gives you something to aim for. Good luck.
I should say that without equipment it hard to stick to.
Cheers,
EP3
View attachment 1302601

I mean I get the chart. Look at the temp of your room and line up what the humidity should be for each stage (green, blue, purple) to get it in the sweet spots. But what do the decimal numbers mean in there. Surely they can't mean, for example 70.68% RH for example. That's what I'm confused about. Cheers for the help mate!

 

[BoCoGrow]

I mean I get the chart. Look at the temp of your room and line up what the humidity should be for each stage (green, blue, purple) to get it in the sweet spots. But what do the decimal numbers mean in there. Surely they can't mean, for example 70.68% RH for example. That's what I'm confused about. Cheers for the help mate!

The numbers inside the chart are the VPD values at each specific combination of temp and humidity. You can geek out on that information if you want, otherwise just try to ensure you are hitting one of the temp+RH combos at each stage of your grow.

What I would like to know is when, technically, is the switch from early flower to mid flower when thinking about VPD?