Wheel of the Year.

Since Wicca is derived from ancient European agrarian societies, the Sabbats are closely tied to the seasons and the calendar. Wiccans claim that the Sabbats have been followed for many thousands of years by ancient cultures such as Nordic, Celtic, Greek, etc. Following is a list of the eight primary Wiccan Sabbats. The dates referenced here are generally accepted by all Wiccans.


Major Sabbats:

Imbolc, Feb 1 or Feb 2,

Imbolc (Imbolg), which means "in milk", is a celebration of fertility and designates the middle of winter. Milk was traditionally poured out upon the ground as a type of offering. Associated with this are the colors white, pink, and red, the amethyst, turquoise, dill, Dragon's blood, frankincense, rosemary, and wildflowers. It is also known as Groundhog's Day, Candlemas, Blessing of the Plow, Disting, Feast of the Virgin, Festival of Milk,


Beltane, April 30 or May 1,

Beltane is the first holiday of summer and signifies the approach of summer and the death of winter. This is an ancient celebration of the return of fertility to the world after it passes through winter. It divided the Celtic year into winter and summer. It stresses human fertility. Associated with this festival is Boodstone, sapphire, frankincense, honeysuckle, Jasmine, St. John's Wort, rosemary, green, yellow, and red. It is also known as Beltaine, May Day, Roodmass, and Walpurgis.


Lughnasadh, Aug 1,

This festival marks the beginning of the harvest season and the middle of summer. The word probably derives from the god Lugh, the Celtic lord of light. Associated with Lughnasadh is Crabapple, ginseng, grapes, potato, berries, green, orange, yellow, and red. It is also known as Ceresalia, First Harvest, Lad Day, and Lammas.


Samhain, Oct 31 or Nov 1,

Samhain means "summer's end" and marks the beginning of winter. For most Wiccans, this is the new year and a time of reflection where the oldest let go and the new is anticipated. From ancient times it designates the end of the harvest season. Associated with the festival are the colors black and orange, obsidian, Onyx, apples, catnip, corn, pears, squash, wormwood. It is also known as Halloween, All Hallows Eve, Blood feast, Celtic New Year, Day of the Dead, Last Harvest, Winters Eve, etc.


Source: The Wiccan Sabbats, or Holy Days by Matt Slick & other.