Imbolc is the Gaelic festival of early spring, kept on 1 February, and in Ireland it has long been bound up with St Brigid's Day. Traditional customs include weaving Brigid's crosses from rushes, carrying a straw figure of Brigid from house to house, leaving a cloth outside overnight for her blessing, visiting holy wells and giving the house a spring clean. Today it's a public holiday in Ireland and one of the eight festivals of the modern pagan Wheel of the Year.
What Imbolc means
Imbolc sits roughly halfway between the winter solstice and the spring equinox. In Irish tradition it was the first day of spring: the days were noticeably longer, ewes were beginning to lamb and the first milk of the year was flowing.
The name's origin is genuinely uncertain. The explanation you'll see most often is the Old Irish i mbolc, "in the belly," referring to pregnant ewes. A tenth-century Irish text known as Cormac's Glossary spells it oímelc and explains it as "ewe's milk," though linguists generally treat that as a folk etymology, a later guess made to fit the word. Other scholars have linked it to roots meaning washing or cleansing. All of them fit the season: new life, milk and the first clearing-out after winter.
Some archaeologists have pointed out that a few Irish passage tombs, including the Mound of the Hostages on the Hill of Tara, line up with the sunrise around Imbolc and Samhain. Others think so few tombs do this that it may be chance, so it's best treated as an intriguing possibility rather than proof of an ancient festival.
Brigid: saint and goddess
Imbolc is inseparable from Brigid, and there are two of her.
St Brigid of Kildare is one of Ireland's patron saints, alongside Patrick and Columba. Tradition says she founded a monastery at Kildare in the late fifth or early sixth century and was famous for her generosity, and many stories tell of her multiplying food and butter for the poor. Her feast day is 1 February. In the twelfth century, the writer Gerald of Wales described a fire kept constantly burning at Kildare by nuns, and a flame is tended there again today.
The goddess Brigid appears in medieval Irish sources as a figure associated with poetry, healing and smithcraft. How closely the saint and the goddess are connected is debated by historians, and it's a sensitive subject: for many Irish Catholics, Brigid is first and foremost a saint, while many modern pagans honor her as a goddess. Both traditions keep the day, and both deserve respect.
Since 2023, Ireland has marked a public holiday for Imbolc and St Brigid's Day, the first in the country named after a woman. It falls on the first Monday in February, unless 1 February is a Friday, in which case that Friday is the holiday.
The old customs of St Brigid's Eve and Day
Folklorists recorded a rich set of customs across Ireland and the Scottish Highlands. Many are still practiced.
- Brigid's crosses. Crosses woven from rushes, often with four arms around a woven square center, were made on the eve and hung over doors, windows and in byres, traditionally to protect the household and animals from fire and harm. The old cross usually stayed up until the new one replaced it a year later.
- The brídeóg. A doll of Brigid made from rushes or straw and dressed in cloth, flowers or shells, carried from house to house by girls, who were welcomed and given small gifts. In some places a girl played the part of Brigid herself.
- Brigid's bed. Households made a small bed for Brigid by the hearth, sometimes with a wand beside it, and in parts of Ulster a family member circled the house with rushes and knocked three times to be let in, as Brigid.
- The brat Bríde. A ribbon or piece of cloth was left outside on St Brigid's Eve so that Brigid would bless it as she passed. It was kept through the year and believed to bring comfort and protection.
- Holy wells. People visited wells dedicated to Brigid, walked around them sunwise while praying and left small offerings such as coins or strips of cloth.
- Spring cleaning and a special supper, marking the last night of winter.
Weather lore: the Cailleach, the serpent and the groundhog
Imbolc was a day for weather signs. In Gaelic folklore, the Cailleach, the old hag of winter, gathers her firewood on Imbolc: if the day is bright, she's collecting plenty because winter will last; if it's foul, she's asleep and spring is near. A Scottish Gaelic verse recorded in the Carmina Gadelica says the serpent will come from its hole on Brigid's day, even with snow still on the ground. In Ireland, a hedgehog seen out and about was a hopeful sign.
The family resemblance to North America's Groundhog Day on 2 February isn't a coincidence. Both belong to a wide European habit of reading the weather at the start of February, which also attached itself to Candlemas, the Christian feast held on 2 February.
Imbolc rituals to try at home
You don't need to follow a particular tradition to mark the first stirrings of spring. A few ideas that stay close to the old customs:
- Weave a Brigid's cross. You'll need about sixteen rushes or long reeds (soak dried ones for an hour), or paper straws for children. Fold one rush in half around the middle of another, turn the pair a quarter, and fold the next rush over both. Keep folding and turning until the center is as thick as you like, then tie off the four ends with thread and trim them.
- Leave out a cloth. On the evening of 31 January, hang a ribbon or scarf outside. Bring it in the next morning and keep it somewhere you'll see it, as a small sign of the year's first blessing.
- Clean one corner properly. A windowsill, a drawer, the shelf by the door. Spring cleaning was part of the day, and a single finished job feels better than a half-done house.
- Light one candle. Brigid is linked with fire and the hearth. Keep it on a stable, heat-proof surface and never leave it unattended; our candle ritual for beginners has the safety basics.
- Visit water. A holy well if you live near one, or simply a spring, river or the sea. Notice what's changed since midwinter.
- Write what's stirring. A short list of what you'd like to grow this year, kept small and specific. Our guide on how to set intentions helps with phrasing.
If you keep a seasonal shelf, a rush cross and a small jug of early snowdrops make a beautiful Imbolc arrangement; our guide on how to make an altar has ideas. The tarot card most often linked with this season is the Star, a figure pouring water at a pool under an open sky, which echoes Brigid's wells and the hope of early spring.
Imbolc also falls during Aquarius season in Western astrology; if that's your sign, our Aquarius traits page is a good companion read. And for how the festival fits into the whole year, see our guide to the Wheel of the Year.
Questions readers ask
When is Imbolc?
Traditionally on 1 February, beginning on the evening of 31 January. Some modern pagans celebrate on 2 February or at the astronomical midpoint between the winter solstice and spring equinox, and many in the Southern Hemisphere keep it around 1 August.
Is Imbolc the same as St Brigid's Day?
They fall on the same day and share many customs. Imbolc is the older Gaelic name for the start of spring; St Brigid's Day is the Christian feast of St Brigid of Kildare. In Ireland the public holiday is officially named for both.
Why do people hang a Brigid's cross?
Traditionally to ask for protection for the home and its animals, especially against fire. Many families still make a new cross each year and hang it inside the front door or in the kitchen.
Is Imbolc a pagan or a Christian festival?
Both, in a sense. The name and some customs probably predate Christianity, but most of the folk customs that survive were recorded as part of St Brigid's Day in Christian Ireland and Scotland. Today it's kept by Catholics, by modern pagans and by many people in between.
