1. Wash pots with diluted bleach to clean thoroughly. Use a wire brush to remove tough stains or mildew.
2. Paint pots with exterior masonry paint, inside and out. Let dry, then add a second coat if necessary.
Tip: Play around with different colours to set off your blooms, or create a unified look by painting everything one colour that coordinates with your landscaping.
Get this look: Exterior masonry paint, $99/gallon, all Farrow&Ball. Top group: Calluna, Churlish Green, Dix Blue, Brassica. Left group: Oval Room Blue, Mizzle, Oxford Stone. Right group: White Tie, Blackened, Vert de Terre, Strong White.