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What is 4/20, How Did It Begin, & What to Expect

By Zen Leaf Team March 21, 2025
420 celebrations with cannabis

What is 4/20 & Why is it Significant?

April 20th—or 4/20—is widely recognized in cannabis culture as a day of celebration, advocacy, and community. Whether you're lighting up with friends or attending a local event, 4/20 has become a global symbol of cannabis appreciation. But beyond the clouds of smoke and good vibes, the date holds a deep cultural significance for cannabis consumers and patients alike.

How Did 4/20 Begin?

The origins of 4/20 trace back to a group of high school students in San Rafael, California, in the early 1970s. Known as "The Waldos," these teens would meet at 4:20 p.m. after school to search for an abandoned cannabis crop, using "420" as their secret code. Though they never found the fabled field, the term stuck and gradually made its way into the wider cannabis lexicon—thanks in part to connections with the Grateful Dead and their fan base.

When Did 4/20 Become a Cannabis Holiday?

By the 1990s, 420 had evolved from an inside joke to a countercultural phenomenon. High Times magazine helped propel it into the mainstream by covering 4/20 events and acknowledging its growing popularity. From smoke-outs in college quads to advocacy rallies in major cities, April 20th became a day to both celebrate cannabis and push for legalization and reform.

What Can You Expect on 4/20?

4/20 today is more than just a reason to light up—it’s a full-on cannabis celebration. Expect special product drops, major dispensary deals, local cannabis events, and a general atmosphere of elevated excitement. Whether you're a seasoned consumer or a curious newcomer, it's the perfect day to explore the culture, stock up on favorites, or try something new.

Tips and Tricks to Get the Most Out of Your 4/20

  • Plan Ahead: Dispensaries get busy, so consider pre-ordering or shopping early.
  • Stay Hydrated: Especially if you're consuming edibles or concentrates.
  • Try Something New: 4/20 is a great time to experiment with different products or consumption methods.
  • Celebrate Responsibly: Know your limits and consume in legal, safe environments.
  • Share the Love: 4/20 is about community—enjoy it with friends, whether in person or virtually.

From its humble beginnings to becoming the unofficial cannabis holiday, 4/20 remains a powerful symbol of progress, unity, and plant-powered joy. However you choose to celebrate, make it memorable.

Where to Celebrate 4/20

Zen Leaf is your go-to destination for 4/20 festivities. With killer deals on amazing products and strains, we're are here to help you celebrate the cannabis holiday in style. Check our online menu or stop by a Zen Leaf dispensary near you to find your Zen today!

Our team of authors is not just a group of writers; they are dedicated cannabis experts and pharmacists with years of experience in the industry. Each member brings a unique perspective, combined with a deep understanding of cannabis' therapeutic benefits, emerging research, and regulatory landscape.

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