Depending upon where you live, there may be an abundance of weeds and wonders: here, we have nettle, motherwort, bee balm, yellowdock, burdock (and so much more) growing wildly and abundantly through the warmer months. The above is a clipping from a poster I designed a few years back (an assignment for school and Mandala Botanicals).
Nettles: One of the most nutritious wild greens in the fields. It is, indeed, stinging, so harvest with long, protective gloves (like rose-pruning gloves) and protective clothing (your skin will burn and sting if it meets the nettle). The stinging quality goes away after steaming or drying.
Marshmallow: Sooooooothing. Good for intestines and bowls. Nice for an irritated throat. Soft leaves and lovely flowers.
Cayenne: Circulation, stimulation, immune kick. Harvest carefully and always keep away from the eyes and wear gloves when handling. Super hero in the immune herbal medicine cabinet
Astragalus: An adaptogen, meaning it helps protect the body against various stresses, including physical, mental, or emotional stress. Astragalus may help protect the body from disease and contains antioxidants. It is used to protect and support the immune system. Also known to help prevent colds and upper respiratory infections, lower blood pressure and protect the liver.
Bee Balm: Easy to grow and beautiful! Sort of invasive (bullies my lemon balm out of the garden every year—so I divide and move). As a part of the mint family, it is both calming and uplifting. Great for herbal baths and teas.