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 roof condensation create wet spots in cocopeat bags?
Look for repeated drip locations, particularly before normal irrigation starts. Local water arriving from above can be missed in routine watering records.
Teral grower guidance · Updated 27 October 2026
FernYour plants & climate guideTHE COCOPEAT CONNECTION
Why the root zone matters
A bag under a drip point receives a different water input from its neighbours, and wet foliage may introduce a separate plant-health concern.
01 / OBSERVE
Three checks before you change anything
- Mark locations beneath roof joints and known condensation points.
- Inspect the crop early enough to observe dripping directly.
- Compare moisture in bags beneath and away from the drip line.
02 / NARROW IT DOWN
What is getting wet?
Choose the closest observation for a suggested next check.
Only a few bags below a joint
Review the condensation route and greenhouse maintenance with the operator.
Leaves and stems are repeatedly wet
Include canopy disease risk in the assessment rather than focusing only on the substrate.
No drips observed
Continue checking at the relevant time before attributing unexplained wetness to condensation.
03 / TAKE THE NEXT STEP
Leave with something useful
Keep photos and a location map so structural and climate measures can be targeted.
Keep in mind
Do not reduce irrigation for the whole crop to compensate for a small roof-drip area.
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