Temperature Measurements - where to take them?

D

dubG

Member

• Oct 24, 2011

• #1

Is it best to measure temperature at the soil, or at the top of the plant?

The top of the plant is closest to the lights so its hottest, but its several degrees cooler at the soil level. So when all the guides say its best to keep temperature within a certain range, is that talking about at the soil level, or top of the plants? Or midlevel? Or....?

Thanks

 

S

smokey mcsmokester

Well-Known Member

• Oct 24, 2011

• #2

I personaly lay a thermometer flat inbetween my pots and have another on the wall a few feet away and another down on the floor.... I like to keep my perimeters temp under heavy watch....

 

racerboy71

bud bootlegger

• Oct 24, 2011

• #3

i was always told that you want to take the temp reading at canopy level, as this is where you really want to know where the temps are at.. and like you said, it tends to be the hottest spot in the tent, so if it's ok there, it will be ok everywhere..
plus, it's where the plants live at, so it's the most important area..

 

cannabisconglomerate

Member

• Oct 24, 2011

• #4

both if possible. 78F is optimal.

 

cannabisconglomerate

Member

• Oct 24, 2011

• #5

although my outdoor soil temp is usually around 100F