Rainbow Mulch is known to last several years, with no concerns of degrading or rotting. It holds its performance well over time.
Our colors are rustic and modern, and of course may slightly change over time. We welcome this. We don't offer a "12-year guarantee". The chemical additives and dyes in recycled rubber keeps the pigment, but we opt-OUT of having harsh chemicals in our product. Our priority is keeping Rainbow Mulch California Proposition 65 compliant.