Joint compound is not waterproof, so you need to seal it with a good coat of spray paint. Textured spray paint will maintain the earthy look of clay pots and planters and helps to cover up any ...
Start by painting the rim of the clay pot(s) with a few coats of acrylic paint. Let dry ... If using moss pieces, glue them down with a waterproof glue to cover the base. Use E-6000 or another ...