Combine two prolific ground covers for nonstop drama. Both Lady's Mantle (Alchemilla mollis) and Geranium 'Rozanne' PP perform without fail, and the combination of their frothy chartreuse flower clusters and purplish blue blooms is a knockout.
'Jack Frost' Brunnera was named 2012 plant of the year by the Perennial Plant Association. I just love this plant in addition to the beautiful foliage it blooms sprays of little blue flowers (perennial forget-me-not). Zone: 3 to 8
traditional landscape by Glenna Partridge Garden Design The combination of hostas, ferns and grasses in this photo provides layers of texture that create visual interest, even though there are no blooms. This would work beside your patio.