Q.Living Wall Materials
Can you tell me if ‘carbon zero’ insulation material would work in place of rockwool or sphagnum moss in a vertical living wall? Will it have similar properties, and has it been tried before cause I’m going to have a go at it?

Certified GKH Gardening Expert
Do you know the exact kind of insulation you will be using? There are several kinds of carbon neutral insulation. My gut says that it should work, but I would need to know the exact kind to be sure. Other than that, I would recommend testing it first. Perhaps you could snitch a small piece and see if it retains water. I am sorry I cannot be more help.