The Weeds You Shouldn't Be Killing
Last Updated: Mar 29, 2025With spring here, millions of homeowners across North America are visiting their local hardware stores to stock up on chemical herbicides to "win the war on weeds." Every year, Americans apply an estimated 80 million pounds of pesticides and herbicides to our lawns. Our children and pets are then exposed to these chemicals when playing in the resulting soft, weed-free grass.
Table of Contents
- What Are the Dangers of Pesticides?
- What Are Some Alternatives to Lawns?
- Can Weeds Benefit Us?
- What Weeds Provide Nutritional and Medicinal Advantages?
- What is a Dandelion?
- What Are the Health Benefits of Dandelions?
- What Is a Plantain Weed?
- What Are the Health Benefits of Plantain?
- What is Purslane?
- What Are the Health Benefits of Purslane?
- What Is Nettle?
- What Are the Health Benefits of Nettle?
In today's article, we will take a look at some of the most common species of "weedy" vegetation that health-conscious homeowners should welcome into their yard. Almost every weed species plays an essential ecological role, especially when regenerating the soil ecosystem from years of chemical lawn abuse. But, this article will focus on the weeds that also offer nutritional or medicinal advantages for humans.
What is a Dandelion?
The common dandelion, or Taraxacum officinale, is a herbaceous perennial flowering plant with yellow flowers. Each yellow flower is called a floret and is arranged in a circular pattern to create the flower head. The dandelion is a member of the Asteraceae family and can be found growing all over the world.
What Are the Health Benefits of Dandelions?
Both the roots, flowers, and leaves of dandelions are wholly edible and loaded with nutrition. The young and tender, spiky green leaves of the dandelion plants are significantly more nutritious than lettuce. They can be either eaten raw in a salad or cooked as with a plate of collard greens. They are an excellent source of vitamins A, C, and K and contain trace amounts of vitamin E, folate, and small amounts of other B vitamins.
The root of the dandelion plant can also be a source of food. Dandelion root has high amounts of the carbohydrate inulin. Inulin is a type of soluble fiber that plays an essential role in the growth and maintenance of healthy bacterial flora in your intestinal tract. Dandelion root can either be dried, boiled and drunk as tea or eaten as a potato substitute. You can also boil dandelion flowers can into tea or ferment them to make delicious wine.
In medicinal terms, all parts of the dandelion have high amounts of antioxidants. Bioactive compounds such as polyphenols in the plant can help reduce inflammation caused by various diseases. One recent peer-reviewed study found that long-term consumption of diets high in plant polyphenols offers protection against various illnesses, including the development of cancers, diabetes, cardiovascular diseases, osteoporosis, and neurodegenerative diseases.
The best part? You most likely will not have to do anything to bring dandelions into your yard. Dandelion seeds are easily spread long distances by the wind. Once you quit spraying potentially cancer-causing herbicides on your lawn, these cancer-preventing "weeds" will most likely begin to show up on their own.
What is Purslane?
If you have a shady and moist area of your lawn or garden, you might very well have found purslane growing there. This red-stemmed and green-leafed weed thrive in moist and shady conditions. While many gardeners futilely attempt to de-root this common weed, it actually has a delicious spinach-like taste. Others compare the taste of purslane to watercress.
Purslane can be easily grown in virtually any space in your garden, as it withstands both excessive water and drought. Once you learn to identify its red stems and small yellow flowers, you will most likely be able to identify wild purslane in your yard.
What Are the Health Benefits of Purslane?
Among all the leafy green vegetables, purslane has the highest vitamin-A content. Nutritional studies have found that purslane's antioxidant value can play a role in vision health and that it can also protect from lung and oral cancer. A 3.5-ounce portion of purslane can also give you 35 percent of your daily Vitamin C needs. Purslane also has an abundance of healthy Omega-3 fatty acids, which play an important role in maintaining optimal cholesterol levels.
What Are the Health Benefits of Nettle?
When nettle is boiled or steeped as tea, the bristles and stinging chemicals are deactivated. The remaining leaves are highly nutritious and also offer a host of medicinal benefits. Nettle plants can help flush harmful bacteria from the urinary tract, thus preventing infections.
The stinging nettle plant is recommended by The Arthritis Foundation to help reduce the inflammation and pain associated with osteoarthritis. People who have diabetes or abnormal blood sugar levels might also benefit from letting a patch of nettle grow wild in the corner of your yard. A 2013 study found evidence that stinging nettle leaf extract lowered blood glucose HbA1c in a group of people with type 2 diabetes.
Dandelions, plantain, purslane, and stinging nettles are just a few of the common yard weeds that offer environmental and ecological benefits but can also bring health benefits. With time, the unique colors, textures, and shapes of a weed-filled yard might actually bring about an appreciated aesthetic quality as well. Challenging the assumption that a monoculture of manicured green grass is ideal for all is the first step towards healthier landscaping alternatives.
Tobias Roberts
Tobias runs an agroecology farm and a natural building collective in the mountains of El Salvador. He specializes in earthen construction methods and uses permaculture design methods to integrate structures into the sustainability of the landscape.
