A cutting garden needs annuals to give you a particular blossom for your bouquets all season long, but it also needs perennials to give you blossoms in their season -  and more new plants next year. In my garden the first perennials that make a big splash are the peonies. They bloom in June. I began growing early season peonies, but soon added late season peonies. My reasoning was that visitors to the Annual Rose Viewing, held…