Broadleaf Weed – Venice Mallow

(Hibiscus trionum)

Venice Mallow – also referred to as Flower of an hour, Bladder Ketmia, Modesty, and
Shoo-fly – is a summer annual broadleaf weed. Preferring waste areas, Hibiscus trionum is often found in fields, unkept lawns, and along railroads and roadsides. Venice Mallow can be found throughout most of the continental United States, with the exception of Mississippi and Nevada.

Identifying Venice Mallow -

Venice Mallow is a summer annual with 3- or sometimes 5-lobed leaves that can be deeply cut. Its stems are usually branched at the base, spreading to erect, hairy tips. The leaves are larger toward the apex, forming on long petioles, and are reduced in size near the top of the plant.

Blooming from June through September, Venice Mallow develops remarkable flowers with pale-yellow to white colored petals with deep purple bases. There are multiple stamens in the center with brilliant yellow anthers. The flowers are open for only a few hours a day, in the morning, hence the nickname “Flower of an hour.” Reproduction is by seeds.

Venice Mallow Control -

Venice Mallow is a difficult weed to control in lawns, gardens, nurseries and orchards. Its seeds can remain dormant underground for several decades, making this weed immune to many cultural weed control methods.

Venice Mallow

Scotts LawnService uses a selective systemic weed control program to fight Venice Mallow in your lawn, which ensures the herbicide is moved throughout the weed, killing it completely root and all.

Scotts LawnService is the trusted industry leader for professional quality lawn care. Our exclusive lawn care products include premium grass seeds and professional-grade fertilizers; our lawn service teams are made up of highly trained, industry-certified professionals. Contact a representative today for Venice Mallow control available in your area and to learn how you can enjoy a lush, fuller lawn that only Scotts LawnService can deliver.