This tough perennial produces spikes of white or blue blooms in early and midsummer. Like most cottage garden plants, the flowers are great for cutting. Name: Campanula percisifolia Growing conditions: Full sun or part shade and well-drained soil Height: To 3 feet tall Zones: 3-8, depending on variety/
Perennial Sage: Perennial Sage Salvia is a wonderfully long bloomer. It starts flowering in early summer and continues through early autumn if you keep cutting the faded flowers off. It's also one of the most carefree perennials you pick for your garden. Zones 4-9
Purple coneflower, daisies, foxglove, black-eyed susans, astilbe and hollyhocks fill this garden. More than half the plants were split from perennials in other areas of my garden, says RMSer jndesign, and this turned out to be my favorite bed..