Keeping our yards weed-free: It’s more than just a desire to “keep up with the Joneses” and not have the ugliest yard in the neighborhood. I would argue that most suburban homeowners in our area strive to maintain a beautiful yard because it is a pleasure to come home to a blooming weed-free paradise after a day of inside work. In our moderate climate zone, we are blessed with a fairly long growing season and an ability to cultivate a large variety of plants. With this opportunity, however, comes responsibility.
I noted in a previous blog (Invasives=Plant Litter March 20, 2017) the importance of planting non-invasives, and, whenever possible, removing invasives. However, what to do about weeds is another aspect of suburban gardening that requires careful decision-making to reduce negative environmental impact.
According to the Plant Natural Research Center, “While most modern herbicides are designed to kill only plants and have little or no toxicity to humans, many still have extreme consequences in the environment, changing habitats in ways that affect insects and wildlife. These consequences extend to water courses where they may kill beneficial aquatic plants and fish.”
In addition, a Purdue University study of dogs from treated and untreated yards found that untreated grass contained chemicals from drift from other yards, and half of the dogs studied who lived in untreated yards still had chemicals in their urine. The Department of Veterinary Clinical Sciences at Purdue found that certain garden and lawn chemicals are linked to canine bladder cancer.
And there is some evidence that toxins in herbicides CAN affect humans. A case-controlled study published in March 1999 by Swedish scientists Lennart Hardell and Mikael Eriksson showed that non-hodgkin’s lymphoma (NHL) is linked to exposure to a range of pesticides and herbicides, including glyphosate, a key ingredient in Roundup often used to control poison ivy in this area. Relatively unknown prior to the 1940’s—about the time pesticides and herbicides came into more widespread use— NHL is now one of the most common types of cancer.
Fortunately, Earth 911 offers some excellent all-natural ideas on how to take care of weeds: http://earth911.com/home-garden/all-natural-weed-killer/?utm_source=New+Earth911+List+-+2015&utm_campaign=50dab42296-Tuesday+Emails+5.9.17&utm_medium=email&utm_term=0_5e8b4dc609-50dab42296-167852373
You may also decide that that “weed” in your garden is really quite beautiful and worth leaving alone. Make environmentally sustainable choices in your garden this year!
(Native Joe Pye Weed is popular with both bees and butterflies—and is technically not a weed : -)