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Root heat vs Leaf heat

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#1 MNXR250R


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Posted 15 September 2017 - 11:39 PM

I've asked this before, but didn't get a solid answer.... so as we do we ask again.


I have read that the temperature of a hot pepper plant (above the roots) can tolerate high temperature (90degF-100degF....100+) consistently, but the root system has to be kept cooler in order to thrive. This condition of course is based on a quality root system.....  Do I have to keep the roots cool in order to have a quality plant when the ambient temperatures are above 90degF ?


I'm working on a (tent system) where I totally disregard the temperature inside of the tent. I have the grow medium ( and roots) underneath  the grow tent, where the plant can grow up and into the bottom of the tent. I can keep the grow medium (under the tent) at good room temp, while allowing the plant that grows up and into tent get to a relatively high temp without affecting the root temps. I have to work out the details of the watering.


 So my basic question is..... should I spend so much time and effort controlling the soil temperature ?


Happy Growing,



#1A Guest


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#2 guested



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Posted 16 September 2017 - 12:37 AM



I'm not sure about the temps the roots can tolerate but have you tried burying a thermometer at a few different depths to see what kind of temps you'll be dealing with under the soil? I have trouble envisioning the heat penetrating more than an inch or two down especially when you plop a tent on top that blocks out any direct light or heat from hitting the top of the soil.


Sorry wish I could give you better input on the root temp question.



#3 96strat


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Posted 16 September 2017 - 01:58 PM

There was a member (can't remember) that was in a dry 140 degree sun. He covered a room with thick plastic to cut the sun. Air temp 140f. He was in containers so the roots had to be warm. He had a continuous drip system set up. Plants looked great! Waters the key.

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