Plantswoman Fleur van Zonneveld selects favourites for the month of May
The mallow-flowered cranesbill is a less common but more beautiful relative of Geranium tuberosum. Like this close relative, it is a tuberousrooted perennial that is sometimes sold by bulb specialists. It makes an ideal groundcover and is easy even in dry shade, but it is summer dormant and disappears after f lowering. Its red-veined, pale purple-blue f lowers, held above deeply divided leaves, are both lovely and edible and add a fresh, slightly tart, accent when tossed in among lettuce and other salad leaves. Height 30cm. Origin North Africa, southern Spain. Conditions Moist but well-drained soil; full sun or part shade. Hardiness RHS H5†. Season Spring.