I'd love some thoughts...when you plant perennials in a raised bed you put everything nice and level etc.....then over time the soil starts to break down and some things sink really far down (usually the things that don't like mulch), and others not so much (things that need mulch). Do you add dirt around the stems of the plants that sank (let's say, a rose bush or peony) or dig out the higher plants? If I remove dirt to make the roses happy, I'm left with very little material in my box, which kind of defeats the purpose. If I add dirt around the roses, I'm afraid the stems will rot.