May 08 2010
Green Solution – Getting Rid of Dandelions Once and For All
While some people like to consume the leaves of a Dandelion plant (Taraxacum officinale) and others enjoy making tea from the flowers, the majority of home owners struggle with these weeds year after year. The problem with hand removal is fairly straight forward, the plant has a very long root and its extremely fragile. Trying to pull it by hand normally results in missing a piece, and any missed pieces can easily regrow into a full plant. I once tried to hand pull a single Dandelion and ended up with 2 new sprouts a couple weeks later.
While there are a number of chemical’s available at your local garden supply store that claim to get rid of Dandelions what they do not mention is how poisonous they are to your other plants, some types of grass have adverse effects from them as well. So if hand pulling is out, and chemicals can potentially cause more harm than good what is a gardener to do?
Easy, buy some Vinegar. I know it sounds crazy but let me explain. The Dandelion plant pulls nutrients from its leaves down into the root. So its weakest point is right there at lawn level ready to be exploited. Vinegar is a fairly acidic liquid and will cause all kinds of problems for plants. However, the normal vinegar you buy at the grocery store has a 5% acidity level. Enough for cooking purposes but not quite enough to do much harm to healthy plants.
So, to get the Vinegar ready to be used, boil it. Doing so will increase the acidity and as a side effect also increase its potency as a Dandelion killer. This is going to be a rather smelly deal, so if possible I recommend using a gas/charcoal grill outside to avoid having your entire house smelling of vinegar. As a bonus, if you have anything with hard water stains this is a great time to clean them as well. Just let them soak in the vinegar as it boils.
Application
There are some things to consider when applying your boiled vinegar. Any green leaf that comes in contact with the vinegar is going to die. So be sparing when applying it, and try to apply it directly to the dandelion plant. A small misting bottle works wonders and keeps you from getting vinegar everywhere.
The vinegar will need time to soak into the plant, which means no mowing. I like to apply the vinegar roughly 3 days before I intend to mow. I think reapply after the mowing, and of course avoid watering the lawn during the entire process.
When mowed your lawn, and the dandelions will go through a little growth spurt as they continue to take in the same amount of nutrients but have less greenery to use it up. What happens is you apply the vinegar and let it soak for a few days, mow reapply and use the plants defense to being trimmed against it.
The best times to use this method are the very beginning of your growing season and in the fall. I try to time the fall one with the last mowing. These are the two best times, during the fall the plant starts moving a large quantity of energy from the leaves to the root so it can survive the winter. And during the early spring they are going through a very large growth spurt and will soak up much more nutrients from the leaves than normal.
For other lawn care tips and tricks stop by My Back Yard Adventures blog over on blogger.