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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Plants & climate · WITH FERN
Review root-zone conditions alongside light and air temperature.
Teral grower guidance · Updated 27 October 2026
FernYour plants & climate guideTHE COCOPEAT CONNECTION
A watering programme that worked in warm bright weather may not suit a cooler crop.
01 / OBSERVE
02 / NARROW IT DOWN
Choose the closest observation for a suggested next check.
Reassess irrigation against current demand.
Review crop expectations and climate together.
Investigate nutrition and root health.
03 / TAKE THE NEXT STEP
Compare records from a healthy period with the cool-weather period.
Do not increase fertiliser merely because growth has slowed.
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