The Q&A Archives: Dollar weed control

Question: I am having a lot of trouble controling dollar weed and it is only spreading over the last three years. Specialized dollar weed killer d/n seem to help. HELP please. Thank you from zip 33572 on Tampa Bay

Answer: Dollarweed, also called Pennywort, is a small broadleaf plant. The best way to get rid of it is to hand pull it, roots and all. The problem is that it grows in large patches and it replaces itself quickly so that few find pulling it up a reasonable solution. There are, however, a plethora of avenues of attack to try. Try weed-killing chemicals. There are chemicals available including WipeOut by GreenLight which will kill the weeds but not their seeds so multiple applications will be needed. A product called Image is also an option. It?s especially good for use with St. Augustine grass. Or you can choose a natural weed killing herbicide whose main ingredient is 10 percent vinegar. You have to use 10 percent vinegar only--regular vinegar is of no use--check with your local nursery or gardening department. The formula for this is as follows: 1 gallon of 10 percent vinegar, 1 oz. orange oil, 1 tbsp. molasses (the ordinary kitchen type), 1 tsp. liquid soap. Shake well and use full strength on warm to hot days for best results. Don?t spray on plants you want to keep alive as it will harm any plant it touches. Best wishes with your project!

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