Perennial geranium is generally easy to grow and thrives in ordinary, well-drained, fertile soil. In the North it prefers full sun, but in the heat and humidity of the South it requires protection from afternoon sun. (High shade from trees is ideal.) It is virtually pest- and disease-free, which is always a blessing. If the plants become straggly after flowering, as they often do in part shade, cut them back to the new foliage.
Perennial geranium, also known as cranesbill, has a strong personality for a small plant, perhaps the reason for its reputation as a must-have plant for gardeners everywhere. When in bloom, it virtually covers itself with striking blue or pink flowers. The blooms are set off with pleasing, deeply divided bright green leaves. (The hybrid Rozanne is shown here.) NOTE: Perennial geraniums are not to be confused with Pelargonium—the ubiquitous pot geranium with spheres of brilliant red or pink flowers.
Place perennial geranium in a prominent location at the front of a border, surrounded by more subtle shades that complement its showoff personality. It can also be used as a ground cover between shrubs such as bridalwreath spirea, but allow plenty of space between the shrubs so the geraniums are not heavily shaded.
ZONES: 4–7
BLOOM TIME: Early summer to fall
LIGHT: Full sun to light shade
HEIGHT: 15–18 inches
INTEREST: Masses of pink or blue blossoms; attractive lacy leaves