'Painting' with moss is relatively easy, so says artist Helen Nodding. The perfect location for these lush creations is damp, shady walls.
To give graffiti moss a go, you'll need:
- 1 can of beer
- 1/2 teaspoon of sugar
- a few clumps clean moss from the garden (remove any rocks or dirt from it)
- a plastic container with lid
- a blender
- a paintbrush