Plants & climate
Humidity, heat and watering
Read temperature and humidity together. The same relative humidity at different temperatures does not create the same drying demand on a plant.
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Can cocopeat growbags get too hot in a greenhouse?
Measure near the roots rather than relying only on the greenhouse air reading.
Teral grower guidance · Updated 27 October 2026
FernYour plants & climate guideTHE COCOPEAT CONNECTION
Why the root zone matters
Bag exposure, surface temperature and irrigation conditions influence the root environment.
01 / OBSERVE
Three checks before you change anything
- Compare shaded and sun-exposed bags
- Measure at consistent depth and times
- Check water delivery during the hottest period
02 / NARROW IT DOWN
Where is the heat concentrated?
Choose the closest observation for a suggested next check.
Exposed edges or end rows
Review shading and layout with the greenhouse operator.
Across the whole crop
Assess greenhouse climate management.
Only irrigation water is warm
Inspect exposed tanks and pipes for solar heating. Compare water temperature at the tank and emitter before changing the irrigation schedule.
03 / TAKE THE NEXT STEP
Leave with something useful
Log root-zone and air observations together before choosing changes.
Keep in mind
Do not assume wetter bags automatically solve excessive heat.
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