The first thing I noticed about feverfew is that it is one tough plant. I planted feverfew in a pot early on in my gardening adventures, partly because the flowers are known to repel wasps and we were having a problem with wasps invading the back veranda where we like to sit.
Unfortunately for the feverfew, I was not a very good gardener all those years ago and because this pot was by the picnic table, away from all the other beds and plants, I often forgot to water it for weeks at a time. It was under the veranda roof, so this was really a problem. It lookedcompletely dried up several times, and I thought it was dead. Then my toddler children over-watered it on many other occasions, drowned it in mud, dug its roots out and tipped it over.
Twelve years on, the feverfew is still alive.
It does have some ability to dissuade wasps from congregating, but only if you take care of it well enough to allow it to make flowers. The more flowers the better, when it comes to repelling wasps. They have a bitter smell.
Relief for those suffering from migraines
However, the real gold in feverfew is in its ability to prevent and subdue migraine headaches. While the name of the plant suggests it as a treatment for fevers and it has been used that way historically, modern medical studies have proven its worth specifically in treating migraines. In Canada, the use of feverfew to treat migraines has been legally recognized.
The flowers and leaves of feverfew can be collected and dried, powdered and put into gel capsules for natural headache pills or the fresh leaves and flowers can be tinctured in 40 percent alcohol. The dried-leaf capsules will only have full potency for a few months, so if you can tolerate a small amount of alcohol, tincture may be the better option.
The short shelf-life is also a good reason to grow your own or find feverfew locally. It will not stand up well to industrial processing or the length of time necessary to distribute commercial capsules, so supplements with feverfew may not be as effective.
There is one consistent warning given about feverfew. Chewing the fresh unprocessed leaves may result in mouth sores or loss of taste. It has a pungent and bitter taste that is not particularly pleasant, so I don't really recommend it. I did once chew a leaf as a test and suffered no strange effects, but people with greater sensitivity may well suffer from sores and the taste doesn't help matters.
I have found no report that tea from feverfew leaves or syrup made from an infusion would be likely to cause sores, but the taste is so repulsive that I doubt either would be a popular remedy.
Feverfew is also still used to treat fevers, irregular menstruation, colds and sometimes infertility, but these uses have not been studied in modern times and documentation of their traditional use is sparse. Given that there are usually more well-known herbal alternatives for these issues, I generally use feverfew only for headaches.
Studies have shown feverfew to be safe if 50-150 mg of leaf powder is taken daily for less than four months. Longer use has not been studied. These dosages are standard and individual reaction and individual plants may vary widely. This isn't specific medical advice and consultation with professionals as well as careful self-observation is recommended.
Feverfew is a tenacious herb and a steadfast friend when you the world is too much for you.