Carolina geranium is a winter annual or biennial weed that is also called cranesbill because the fruits have a conspicuous "beak" about ½ inch long. The leaves are deeply five- to seven-lobed and each lobe is again lobed and bluntly toothed. The flower is white to lavender and borne two to several together on stalks from the upper nodes. It blooms mostly in April and May.
Proper turf management is important for biennial broadleaf weed control. Maintain a dense, actively growing turf through proper mowing, fertilizing, and watering practices. Mow at the proper height for your selected adapted turfgrass. Coring and traffic control reduce compaction and encourage desirable turfgrass competition. It is best to control this biennial broadleaf weed in spring or fall, if actively growing at these times.
Growth Season/Life Cycle
winter annual or biennial weed
upright; basal rosette of leaves, stems erect
deeply five- to seven-lobed and each lobe is again lobed and bluntly toothed
1 inch to greater than 2 inches
usually alternate near base, opposite above
blue/purple or white