Question

Which type of moss should I use for moss graffiti?

Community Answer

Whatever surface you will be painting on ( i.e., brick, wood etc.), use that as the medium for the moss, so that when you look outside, you look for moss growing on that medium. If there is moss outside growing on brick and you are going to be painting it into brick, then use that, as the moss is already growing in your climate on the surface you want, so it is therefore a match.