Herbaceous Perennials are distinct from annuals in that they return year after year, eliminating the need to buy and plant new flowers every spring. Unlike annuals, which often bloom all summer long, perennials generally bloom only for a few weeks in their season, but if cut back some plants will re-bloom for a second session, although they might not be as tall second time around. There are spring bloomers, summer bloomers, and autumn bloomers. There are hundreds of varieties of perennials available to suit a variety of environments enabling you to create the garden of your dreams. In spring, 9cm pot plants will develop well through the summer and triple their size.  In autumn, however, it is better to plant 2/3L size pot plants as they will be much more able to cope with adverse winter weather. Please contact us for  2-3L availability and prices. The plants offered here are generally 9cm unless stated.