What is a fairy ring and what causes them?

Fairy ring of mushrooms on the woodland flooe
Have you ever seen a magical ring of mushrooms in the woods? (Photo: Arco Images/WTML)

A visit to the woods is always an adventure. You never know what wonders you might find. What wildlife will you meet? Will you see any mystical creatures? Among the dens of fallen branches, the wildflowers and the creepy crawlies, you could discover a rare fairy ring - a sure sign that fairies are close by.

What is a fairy ring?

Fairy rings, which are also known as elf rings or pixie rings, are naturally occurring circles made up of mushrooms. The mushrooms grow out of the ground in a circle shape, and some are small in size while others can grow up to 600 meters in diameter.  

Fairy ring of mushrooms next to a large tree
Fairy rings grow larger over time. See how big this one has grown! (Photo: Yon Marsh Natural History/WTML)

What causes fairy rings?

Fairy rings are caused by an individual fungus growing underground. The fungus sprouts lots of small threads, called mycelium, in a circular shape. A year later, the mushrooms pop up out of the ground at the edge of the circle, creating the fairy ring. The circle will start off small in size, getting bigger as it gets older.

When and where to spot them

Fairy rings are most commonly found in woodland and grassy areas . The best time of year to see them is late summer to early autumn, and you are more likely to see them pop up after wet weather. So pull on your wellies and see if you can find any! 

Mythical stories about fairy rings

Illustration of a girl with faeries in a dairy ring
This painting shows the myth of the German 'elf ring'. (Photo: ScienceHistoryImages/Alamy)

Different countries across Europe have their own folklore tales about fairy rings. In English and Celtic folklore, fairy rings were caused by fairies or elves dancing in a circle. It was said that if humans joined in the dance they would be punished by the fairies, and made to dance in the ring until they passed out from exhaustion!

In German folklore, things took a spooky turn, as fairy rings were actually known as witches’ rings. It was believed they were the place where witches would dance on Walpurgis Night, a spring celebration taking place exactly six months before Halloween.

In Austrian mythology, dragons were to blame for the appearance of fairy rings. It was said they burned them into the forest floor with their fiery tails.

There are lots more mythical stories surrounding fairy rings. Some cultures believe that they are portals to another world, while others say that the mushrooms are simply used as dinner tables for fairies. There is also the belief that they bring good luck and that they are a sign of a fairy village underground. Another folklore story is that you should never step into a fairy ring, as you may become invisible or become trapped there forever.

Whatever you believe about fairy rings, they are definitely an exciting discovery if you ever happen to stumble upon on in the woods. Just make sure you don’t touch the mushrooms, as some can be poisonous. It might be a good idea not to step into the circle either – you don’t want to disappear!

Explore your local woods and find out more about mushrooms

Head to a wood near you and see if you can find a fairy ring, or any other weird and wonderful mushrooms, while you explore! Even if you’re not lucky enough to discover a fairy ring, there are still lots of other ways to make your visit to the woods magical. Why not set up a fairy tea party, make a fairy door or set off on an elf and fairy hunt?

Have you seen a fairy ring?

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