A to Z Herbarium: Knotweed



Binding, Health

Polygonum aviculare — Flora Batava — Volume v3
Knotweed “binds” woes and miseries by holding it in one’s hand, visualizing one’s problems going into the herb, and then burning it. When carried, it strengthens and protects the eyes.

Used in binding spells to restrict someone or control their movements in some way. Carrying powdered knotweed in a packet is used to attract love, and slipping the herb in someone’s tea is supposed to make one more attractive to them.

Drinking knotweed tea is useful as a diuretic, and a strong tea drunk daily will kill intestinal worms. Its astringent properties make it especially useful in poultices to heal wounds and stop bleeding. Has also been used to treat diarrhea, dysentery, cholera, hemorrhoids, piles, ulcerated tonsils, as well as discharges of the nose, urethra, vagina, and ears.



Cunningham’s Encylopedia of Magical Herbs, Scott Cunningham, 2016, Llewellyn Publications

The Complete Illustrated Encyclopedia of Magical Plants, Revised: A Practical Guide to Creating Healing, Protection, and Prosperity using Plants, Herbs, and Flowers, Susan Gregg, 2013, Fair Winds Press

Environmental History of the Hudson River: Human Uses that Changed the Ecology, Ecology that Changed Human Uses, Robert E. Henshaw, 2011, SUNY Press

Herb Magic



  1. Such a powerful herb.

  2. Thanks for an informative and interesting post on something I knew next to nothing about. I think what knowledge I have about herbs comes from things like Harry Potter when they’d use them in their potions classes!
    My theme is my Favourite Things and there’s a bit of nostalgia today as K is for Kim Possible.

    • Sara C. Snider

      I don’t know a lot about herbs either, which is part the reason for doing this theme. I’m learning a lot too! 🙂

  3. I need some of that! Not for diarrhea and things like that of course, but to avail myself of is attractivating properties! (is that a word?)

    K day in Amble Bay!

  4. I’m not familiar with knotweed, but now that you’ve introduced it I’ll be on the lookout.

    • Sara C. Snider

      Me neither. It’s not to be confused with Japanese Knotweed, though, which is what kept coming up when I was trying to research this post… 😛

  5. My mom was into healing properties of herbs, so I’m surprised I had never heard of knotweed before reading your post. Or maybe I’ve just forgotten about it over the years.

    Interesting and informative post!

    Trudy @ Reel Focus
    Food in Film: Kibble

    • Sara C. Snider

      There are a lot of herbs out there, so it would be hard to keep a mental note of them all. Glad you enjoyed it!

  6. I need to find some of that, my eyesight is awful. 😛 I did not know any of this, thanks for the informative post!

  7. Now to take over the world! Happy A-to-Z-ing.

  8. I was slightly worried thinking about Japanese Knotweed- which is a truly terrible plant – but I can see by the illustration this is the normal one of which I have several plants growing near my garden gate – maybe it binds any woes there which is why my house is such a happy place?
    Lovely to meet via the Challenge – http://pempispalace.blogspot.co.uk/2017/04/k-is-for-kids-kingdom.html

    • Sara C. Snider

      Yeah, Japanese Knotweed was everywhere when I tried researching this post. Rather annoying… 😛 I love that you have knotweed near your gate. It must indeed be at least one of the reasons you have a happy home. 😉 Nice to meet you too!

  9. Knotweed is new to me. I’ll have to look for it when I’m out and about this spring.

  10. Hi Sara – I thought you were going to talk about Japanese Knotweed – which as Pempi rightly says is a monstrous and lethal plant in many ways … but it sounds an interesting addition to plant lore .. cheers Hilary


    • Sara C. Snider

      Yeah, the Japanese Knotweed is everywhere, even Google searching. 😉

  11. mmmm, this sounds useful … as a love potion mebbe …and also for burning and being rid of the miseries ..

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