Matthew Wallhead, College of Maine Cooperative Extension decorative horticulture specialist and assistant professor of horticulture, spoke with WMTW News 8 about spring cleanup for lawns and gardens. Wallhead explained March is a good time to start a notebook, system your back garden and start off gathering supplies. If you are starting up your individual seeds at household, there are several plant kinds that can be planted previously, such as celery, onion, leeks, lisianthus and foxglove.