Love them, love them not: dandelions are widely regarded with disdain, ruining lawns with their bright yellow blooms and stubborn roots. Despite being a pesky weed, dandelions are one of the most versatile plants growing across Canada. Long before herbicides and manicured lawns, dandelions were valued for their uses for food, medicine, and even coffee.
The common dandelion originated in Europe before being brought to North America by early settlers. Rather than arriving accidentally like so many other species, it was intentionally brought because of its many practical uses. Every part of the dandelion is edible, from flower to root.
Their name comes from French "dent de lion," meaning “lion’s tooth,” referencing the jagged shape of its leaves. Dandelions are prolific in part because they are extremely resilient. Their deep taproots can stretch more than a foot into the ground, allowing them to survive drought and poor soil conditions. Each flower head can produce hundreds of seeds, dispersing through the air in tiny parachute-like tufts.
For generations, dandelions have appeared on dinner tables. And with the popularity of foraging increasing and emphasis on eating local, dandelions are appearing on restaurant menus. Young leaves offer a slightly bitter flavour similar to arugula. They can be added to salads, soups and or ground into a pesto instead of basil. The bright yellow flowers can be battered and fried into fritters or used to make dandelion wine. Removing the stem and roasting the head apparently lessens the bitterness. Some cooks even turn the blossoms into jelly resembling honey.
One of the plant’s most popular modern uses is dandelion root coffee. Roasted roots are brewed into a caffeine-free beverage with an earthy, chocolatey taste that is reported to resemble traditional coffee.
Dandelion tea is a diuretic, meaning it helps eliminate excess water from the body through urination. Because of this, dandelion tea supports kidney and urinary tract function. The tea can be made from the leaves, flowers or roots or bought in teabag form at health food stores.
Medicinally, dandelions have been used in traditional herbal practices for centuries. The leaves are rich in vitamins A, C and K, along with minerals such as potassium and calcium. Herbalists have historically used dandelion preparations to support digestion and liver health. In more recent times, dandelion root extract is being studied for their effects on certain cancer cells. Researchers at the University of Windsor have spent more than a decade studying the root extract and reported in 2015 that "programmed cell death" occurred in certain colon cancer and leukemia cells grown in petri dishes.
Despite decades spent battling them with chemicals and weed pullers, dandelions continue to thrive. In a time of economic uncertainty and rising grocery prices, it might be a good time to reconsider what to do with the free and nutritious weed growing everywhere.