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Moss Recipe by re-nest, promote moss growth on stone, brick and the like: Mix up a batch of 12 oz. beer, 1/2 teaspoon of sugar and a couple of clumps of moss. Paint this mixture thickly on any damp shady surface you'd like to be moss covered and the moss will slowly grow and spread.
grassy paving - put mother-of-thyme or other low-growers that don't need mowing, and use it for parking lots instead of asphalt. Most wil survive. What doesn't - put asphalt there only. And you will end up with a less heated, more water-absorbent surface, much healthier and greener.