For a lot of our clients in Fairfield and Litchfield County, our fall garden maintenance visits involve a lot of cutting back of perennials and other herbaceous plants. There is no specific reason why we cut back perennials at this time of the year besides our clients expect the task be completed in the fall. As long as perennials get cut back by spring, they will be ready for their spring growth spurt. I will admit that cutting back perennials in the fall will tidy up the landscape and make leaf removal from the garden a lot easier. That being said, leaving certain perennials through the winter can create some interest in the winter landscape. Something as simple as a spent flower head becomes natural art once the snow starts falling.