We use FSC Western Red Cedar for all of our planters. Cedar is nontoxic, has beautiful natural colours and grain, as well as a wonderful aroma. It thrives in damp climates, withstands many conditions, resists rot, and does not shrink, swell, warp, or decay in weather changes. Cedar allows our planters to last all four seasons in any climate. Cedar is a natural insect repellent, protecting your garden from unwanted critters.