Cutleaf Evening Primrose – also known as Oenothera sinuate and Raimannia laciniata – is a biennial, winter or (rarely) a summer annual broadleaf weed. Oenothera laciniata prefers alluvial soils and is commonly found in fields, residential lawns, gardens, and along railroads and roadsides. Cutleaf Evening Primrose can be found throughout the United States, with the exception of Arizona, Colorado, Idaho, Montana, Nevada, Oregon, Utah and Washington.
Identifying Cutleaf Evening Primrose -
Cutleaf Evening Primrose features an underground taproot forming a basal rosette. Branching from the rosette are stems that are hairy, often reddish, and can grow either horizontally or vertically at the tips. Elongated stems can sprawl close to the ground. Cutleaf Evening Primrose can be distinguished from Evening Primrose by its leaves, which feature wavy, irregularly lobed margins: hence the name “Cutleaf” Evening Primrose.
Blooming from May through October, Cutleaf Evening Primrose features small yellow flowers with four petals, although sometimes the flowers can be reddish-brown in color. Reproduction is by seed.
Cutleaf Evening Primrose Control -
Trying to remove Cutleaf Evening Primrose with cultural weed control methods is not recommended. Physical removal (hand pulling) can be difficult due to the large underground taproot.
Scotts LawnService recommends selective systemic weed control to fight Cutleaf Evening Primose 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 comprised of highly trained, industry-certified professionals. Contact a representative today for Cutleaf Evening Primrose control available in your area and to learn how you can enjoy a lush, fuller lawn that only Scotts LawnService can deliver.