Wrigley Field, opened on April 20, 1914, is far more than a ballpark—it’s a living monument where the ivy covering its outfield walls has become the most iconic symbol of American baseball. That English ivy (Hedera helix) planted in 1937 has flourished for over 85 years, transforming a simple brick wall into a postcard image that defines the Chicago Cubs’ identity and captivates visitors worldwide.
The Ivy’s Origin: A Happy Accident
Wrigley’s famous green wall was born almost by chance. In 1937, Cubs general manager Bill Veeck planted ivy and shrubs to cover the unsightly advertisements that plastered the outfield walls. What started as a practical fix became so distinctive that today it’s impossible to imagine the stadium without it. Beyond aesthetics, the ivy fundamentally changed the game itself—any ball lost in the leaves is ruled an automatic home run, a unique rule in Major League Baseball that only exists at Wrigley.
The Art of Maintenance: Keeping It Alive
Maintaining nearly a century of living ivy demands expertise and constant attention. The Cubs’ groundskeeping team performs strategic pruning during winter months when the stadium is dormant, ensuring dense coverage without obstructing fielders’ vision. Come spring, the ivy bursts back to life for another season. The caretakers must strike a delicate balance: too thick and it blocks sight lines; too thin and it loses the character that makes Wrigley magical.
Cultural and Tourism Impact
Wrigley’s ivy has transcended baseball to become a cultural icon. It appears in films, photographs, and in the imaginations of fans who’ve never set foot in Chicago. During the 2023 season, Wrigley Field drew approximately 3 million visitors between games and tours, many specifically drawn by the experience of seeing that green wall in person. The ivy represents an emotional connection to the past—a reminder that some places can age with grace and dignity.
Modern Challenges and the Future
Climate change, pests, and natural aging pose growing challenges to the plant’s survival. In 2020, during the pandemic, the ivy was pruned more aggressively than usual, sparking concern among fans. Yet the maintenance team has proven the plant is resilient. The Cubs invest significant resources in research and preventive care to ensure the ivy remains a living symbol of the stadium for generations to come.
| Fact | Figure/Year |
|---|---|
| Wrigley Field Opening | April 20, 1914 |
| Ivy Planting | 1937 |
| Years of Ivy at Wrigley | 85+ years |
| Annual Wrigley Visitors (2023) | ~3 million |
| Ivy Species | Hedera helix (English Ivy) |
FAQ
What happens if a ball disappears into the ivy?
It’s automatically ruled a home run. This unique Wrigley Field rule has created memorable—and controversial—moments throughout baseball history.
Why not replace the ivy with a hardier plant?
Because English ivy is inseparable from Wrigley’s visual and cultural identity. Replacing it would erase decades of baseball history and tradition.
How much does it cost to maintain the ivy?
While the Cubs don’t publish exact figures, maintenance is part of the annual operations budget. Industry estimates suggest tens of thousands of dollars yearly for specialized care.

