Virginia Buttercup Weed: Understanding Its Life Cycle and Control Methods

Virginia buttercup weed, scientifically known as Diodia virginiana, is a native plant of the southeastern United States. It's a perennial broadleaf weed that can thrive in poorly drained or overly moist lawns or ornamental beds, caused by excessive rainfall or frequent irrigation. If left uncontrolled, Virginia buttonweed can form dense, thick mats that can choke out turfgrass.

The weed has shiny, dark green, lance-shaped leaves that are oppositely arranged on the stems and are attached directly to the stem. The leaves often take on a mottled-yellow look due to a virus. In the summer, older plants become more tolerant of selective herbicides, making these controls less effective. It may take two springs to achieve effective control of this weed.

For successful control, it's essential to apply herbicides in the spring when the plants have emerged from dormancy. Always read and follow label directions for rates, spraying conditions, and personal protective equipment. Additionally, hand-pulling is another viable option; however, be aware that pieces of roots and stems that remain can re-sprout.

To prevent the spread of Virginia buttonweed, it's crucial to bag clippings when mowing in areas where the weed is present. The plant can spread by stem pieces cut and distributed during mowing. Furthermore, contact the Henrico Extension Office or your local Virginia Cooperative Extension office for herbicide control recommendations specific to Virginia buttonweed.

Correcting any drainage problems within the lawn or ornamental beds can also help reduce wet areas and prevent the weed from thriving. By taking proactive measures to control Virginia buttercup weed, you can maintain a healthy and attractive landscape.