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Dock weed, also known as dock or Rumex, is a common weed that can be found in gardens and lawns. To effectively kill dock weed, follow these steps:
1. Identify the dock weed: Dock weed has broad leaves with a distinct shape and a reddish stem. It can grow up to 3 feet tall.
2. Manual removal: If there are only a few dock weeds, you can manually pull them out, making sure to remove the entire root system.
3. Herbicides: For larger infestations, herbicides can be used. Select a herbicide specifically designed to target broadleaf weeds like dock weed. Follow the instructions on the label for proper application.
4. Prevent future growth: To prevent dock weed from coming back, maintain a healthy lawn by regularly mowing and removing weeds promptly.
Remember to always wear gloves and protective clothing when handling herbicides and follow safety precautions.
Dock weed, also known as ​Rumex​ spp., USDA zones 4-8, has various names such as broadleaf dock, curly dock, bitter dock, and celery seed. This weed can germinate easily, making it prevalent in lawns and gardens. Pulling dock weed by hand can be challenging, and using mild products may not be effective in killing it. Therefore, it requires a different approach to eradicate it.
Manual Removal of Dock Weed
One way to get rid of dock weed is to remove its root system, preventing the plant from sprouting again. However, dock weed has a tap root that can extend several feet underground, making it challenging to eliminate. Research suggests that the tap root’s upper 3 inches can sprout a new stem. Therefore, digging out the root 3 inches below the soil line can effectively kill dock weed. It is advisable to wait until after rainfall to dig up dock weed with a shovel or hand trowel since moist soil is easier to dig into. Dispose of the root pieces in a yard waste bag or burn pile. Avoid composting it since it may resprout in your compost pile. Familiarize yourself with young dock weed’s appearance to identify and pull it out before the tap root locks into the soil.
Broadleaf Herbicides for Dock Weed
Non-chemical weed-killing methods may not be effective since dock weed can resprout from the top 3 inches of its root. Burning or pouring boiling water or vinegar on dock weed will kill the current leaves, but not slow down the plant’s regrowth. Therefore, chemical herbicides are one of the most effective options for controlling dock weed. Products containing trifluralin work well on dock weed. All herbicides intended for broadleaf weeds will kill dock weed. Ensure you read the label carefully and follow safety precautions when handling or applying an herbicide. Wear appropriate personal protective equipment, mix the herbicide correctly, and apply it under the recommended weather conditions.
Preemergent Herbicides to Control Reseeding
Dock weed produces numerous seeds that spread easily and germinate rapidly. If you live near pastures, crop land, or unkempt properties where dock weed often goes to seed, you may find yourself constantly battling new dock weed sprouts. Applying a preemergent herbicide can prevent these seeds from growing into fresh dock weed plants. Isoxaben-containing products effectively keep dock weed at bay. Wear protective clothing when applying herbicides.
Outcompeting Dock Weed
Once a new dock weed plant establishes its tap root, it can grow up to 5 feet tall and dominate the landscape. However, as a seedling, dock weed is vulnerable to competition from other plants. Ensure your lawn or garden is kept full and lush. Overseed the lawn and follow an appropriate fertilization schedule to ensure it remains healthy enough to crowd out any dock weed sprouts.