The spring equinox in our Northern Hemisphere falls on March 20. This is (and is celebrated as) the time when the sun passes over the celestial equator. Wiccans and other neopagans observe the day as Ostara, a festival that celebrates the season’s change from dark winter to brightening spring. Ostara is one of 8 neopagan sabbats, or holidays, that make up the Wheel of the Year.
"Ostara, or Eostra, is an Anglo-Saxon goddess who represents dawn. As a spring goddess she oversees the budding plants and burgeoning fertility of the earth. The Horned God, sometimes envisioned as the god Pan, symbolizes the festive enjoyment of nature through hunting and dancing." (Huff Post)
Our current day Easter has embraced the fertility symbols of this earth-based tradition, so common symbols for this celebration include eggs, rabbits, flowers and seeds.
I LOVE Ostara. It is a time in the Wheel where there exists a more calm embrace—before bountiful Beltane and a forth-bursting spring: it still holds a quiet contemplation, excitement and anticipation. It is still, and inward time—while it grows outward and energized (like a waxing moon).
ThoughtCo. has a wonderful, simple and meaningful celebration (and there are so many). The link is here. There are many other ways to celebrate and honor this time: I suggest you read up on a few and craft your own...with or without a group.
Happy Ostara. Blessings.