Roots & watering
Why is green algae growing on cocopeat?
Look for persistent surface moisture, light and nutrient exposure.
Check with DigbyFind your next step →Roots & watering · WITH DIGBY
Should I cover the cocopeat surface in containers?
A cover changes light, evaporation and access to the root zone. Decide what problem you want it to solve before introducing it across the crop.
Teral grower guidance · Updated 27 October 2026
DigbyYour roots & watering guideTHE COCOPEAT CONNECTION
Why the root zone matters
Covered coir can behave differently from an exposed surface, even with the same substrate and container. Monitoring must account for the change.
01 / OBSERVE
Three checks before you change anything
- Identify whether the aim is algae control, cleanliness or moisture management.
- Check that the cover does not obstruct the stem, outlets or inspection.
- Compare moisture and root condition in covered and uncovered trial pots.
02 / NARROW IT DOWN
What is the main aim?
Choose the closest observation for a suggested next check.
Reduce surface algae
Review persistent wetness and hygiene as well as light exclusion. A cover alone may hide the underlying condition.
Reduce evaporation
Monitor the changed moisture pattern before retaining the previous irrigation schedule.
Keep debris out
Use a suitable clean cover that allows necessary access and does not create stem contact problems.
03 / TAKE THE NEXT STEP
Leave with something useful
Trial the cover on a small marked group and inspect beneath it regularly.
Keep in mind
Do not interpret a clean-looking cover as evidence that the underlying medium is healthy.
Discuss this with Teral →CONNECTED QUESTIONS