Clear soft-leaved perennials
As we go into autumn, perennials naturally start to die down as they become dormant for winter. Some, such as hostas, with their soft foliage, die down much faster than perennials with tough foliage or wiry stems. Once we get some cold nights or a few ground frosts the leaves soon collapse and at this point they can be cut back to soil level and added to the compost heap. Clearing the dead foliage early in the season helps to spread the work over the winter and also reduces hiding places for slugs and snails.