Our studies have shown that the EarthBox can double yields, using less water and fertilizer compared to conventional gardening. More importantly, thousands of EarthBox customers prove our claims every time they plant. We’re so sure that the EarthBox will work for you; we offer a one-year satisfaction guarantee. You can use the EarthBox all season long and if it doesn’t produce as advertised, simply return it, and we will promptly refund your purchase price.