A rolling stone gathers no moss, they say, but a flower pot can. Here's how to give a pot, container, or statue an old-fashioned mossy patina.
1. With a metal brush, lightly scratch the surface of your pot. (This makes small crevices where moss will take hold.)
2. Mix up a moist paste of one quart buttermilk, one pint composted manure, and one pint pulverized wood-land moss. Brush the mixture on the pot as if you were icing a cake.
3. Place the pot outdoors in a cool, moist, shady spot, or place it on a shallow pan filled with gravel and water. Keep the pot moist by misting it or using a fine hose spray as needed. In a few weeks, the moss should grow into the crevices. If the pot smells a little odd at first, be patient. The aroma should go away as the moss spreads.