for the brick wall in my dream house: Moss Graffiti: Put in blender: one can of cheap beer (or 1 cups buttermilk), a few handfuls of moss, one teaspoon of sugar. Paint on wall and mist daily until it grows.
I know I've pinned this here before - Moss Graffiti. Just mix some moss collected elsewhere with yoghurt or buttermix in a blender and apply with a brush to a textured/porous wall like brick or concrete. Spray with a water mister if the weather is dry.
When I have my own brick walls outside.Moss paint: You’ll need several handfuls of moss, of buttermilk or a can of beer and a teaspoon of sugar. Mix in a blender until liquid and paint on the wall. Spray daily as it grows, as moss thrives when moist.