VPD question

FlowerPower88

Well-Known Member

Mar 12, 2022

• #1

The range for acceptable VPD during each stage of growth is so wide, does it matter what temps you run as long as you achieve VPD within the required range? Or are there better temps and RH to hit within the acceptable range?

 

Billy the Mountain

Well-Known Member

Mar 12, 2022

• #2

Low 80s air temp for LED lighting

There's a search box on the upper right

 

FlowerPower88

Well-Known Member

Mar 12, 2022

• #3

But will a lower temp in certain stages suffice as long as I’m being mindful of vpd, low 80’s is a lot more achievable in later veg and flower when Vpd allows for lower humidity.

 

Billy the Mountain

Well-Known Member

Mar 12, 2022

• #4

Within reason
Lower temps = slower growth

 

FlowerPower88

Well-Known Member

Mar 12, 2022

• #5

Thank you I can see the truth in that

 

K

Kgrim

Well-Known Member

Mar 13, 2022

• #6

Here's a nice VPD chart I came across. And like Billy said, lower temps, growth will be slow. I had a hard time getting my "hidden" room back up to temp after a long hiatus, I was hitting VPD on the chart, but the lower temps weren't helping any. Once I got it back up to temperature, plants literally came to life, and are growing big time.

 

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twentyeight.threefive

Well-Known Member

Mar 13, 2022

• #7

As stated above lower temperatures will result in slower growth.

Something to mess around with if you are interested in VPD.

www.vpdchart.com

 

FlowerPower88

Well-Known Member

Mar 13, 2022

• #8

twentyeight.threefive said:

As stated above lower temperatures will result in slower growth.

Something to mess around with if you are interested in VPD.

www.vpdchart.com

Click to expand...

That’s the site I use, def. Saved my first indoor grow! But I was wondering why the new growth was so slow