This time of year can be challenging for tropical orchids with short dull days – we haven’t seen sun for a while in Somerset – and so it is a great time to make sure that your greenhouse is clean inside and out. The photos above show part my home cool house with the walls cleaned of moss and the glass cleaned of algae.
A pressure washer does a great job of cleaning back to clean stone while plants are temporarily crammed into the other half of the greenhouse (below)
I feel that the benefits for the plants are 4 fold:
1.More light. 2.Less moss and fern invading the baskets and mounts. 3.A reduction in pathogens and pests (e.g. less hiding places for slugs) and 4. Fresher, less dank air.
It is also a lot more pleasurable for us humans in the greenhouse to see things clean and smart.