to noon Mondays and Thursdays at the Extension office for plant issues, soil testing and insect identification. īarrett is the Ohio State University Extension educator for agriculture and natural resources in Mahoning County. To learn more about winter annuals and controlling them in the lawn or landscape, go to. Using a hoe and adding mulch at this time of year will help reduce or eliminate weed pressure the following spring. In landscape areas, mulching will help reduce weed pressure.Īugust is the time to consider pre-emergent products, as this is when those tiny seedlings seem like no big deal. In lawns, mow 3 to 4 inches high so the grass outcompetes these weeds. There are chemical controls for these weeds, but prevention is a key step of the process to discourage these weeds. Other common winter annual weeds include hentib, speedwell, Shepherd’s purse and many more. Once a warm spell comes in later winter, it sends up stems with tiny white flowers that turn to seed pods in a quick manner. The leaves are pinnately compound with elongated leaflets. It is a small plant, that appears as a small rosette during winter. Hairy bittercress is a member of the mustard family. Fun Fact: The name Dandelion comes from the French 'dent de lion,' which means 'lions tooth,' similar to the jagged-edges on the dandelion. You will find dandelions blooming in the Spring & Summer months. They are easy to spot with their bright yellow flowers or white puff-balls. The plant branches rapidly along the ground and continues its lime green coloring. A typical lawn weed found in Illinois is Dandelion Weeds. The flowers are daisy like with a green center and a tiny - 3 to 6 millimeters wide. It is most recognizable by its white flowers that appear from early spring until late fall. The seedling has “spade” shaped leaves and is a lime green color. Chickweed is a very soft plant, sometimes called bindweed or winter weed.