Beyond that, it’s time to throw out some conventional methods. The advantages of leaving the plants standing outweigh the advantages of the traditional ‘clean up every scrap’ method. We clean up everything to deprive rodents of homes, remove diseased foliage and cut pest problems. On the other hand, leaving most of the perennials and grasses standing throughout the winter allows the plants to hold snow and therefore shelter themselves. The pests find a home regardless of what we do but the beneficial predators need that shelter and will help control problems all year long. This is very important since we’re now under the pesticide ban. We need to learn to work with Mother Nature as much as possible. Most people love birds. Leaving the garden standing encourages these birds which do wonders to control pests. (Anything that can be done to encourage birds including planting native berry and seed plants, planting shelter plants and planting native trees helps to control pests in the garden.)