Biology and Management of Dayflowers (Commelina spp.) in Ornamental Plant Production and Landscapes in Florida

Several native and non-native dayflower (Commelina) species can be found in Florida landscapes and production nurseries. Two of the most widely distributed species include the native whitemouth dayflower (Commelina erecta) and the non-native spreading dayflower (Commelina diffusa), which is thought to have been introduced to Florida from Asia. Both species are widely distributed and have been vouchered in nearly every county in Florida. This publication is written for home gardeners and other green industry professionals to aid in the proper identification of these two common dayflower species. General management information is included for both dayflower species.