Building What May Be the World’s Largest Moss Wall in Boston, MA For a Corporate Office

Moss Pure and Sasaki Architects

Moss Pure is currently in the process of installing what is believed to be the world’s largest moss wall, a roughly 200-square-foot installation split across two dramatic pieces, including a moss wall soaring 25 feet through a five-story stairwell, at a corporate office in Boston, Massachusetts, in partnership with global design firm Sasaki Architects.This installation is one of the most ambitious examples yet of a moss wall for a corporate office, bringing certified, engineered living moss into a workplace at a scale rarely attempted anywhere in the world

Moss Pure is 100% LIVE moss. This isn’t a preserved moss installation and it isn’t a decorative greenery display. It’s a fully engineered, living moss wall system, the same patented technology behind every Moss Pure installation, scaled to a size no moss wall (either living or preserved) has reached before.

This project is being installed for a confidential Fortune 500 financial services client at their corporate offices in Boston, Massachusetts.

Project at a Glance

• Location: Moss Wall in Boston, Massachusetts
• Architecture/design partner: Sasaki
• Scope: Approximately 200 square feet across two installations. First, a five-piece moss wall in the lobby, and a second, 25-foot-tall installation within a five-story stairwell
• Client: A confidential Fortune 500 financial services company
• Timeline: Began in June 2026 and expect to be completed by October 2026
• Status: In progress — this post will be updated as construction continues

Two Installations, One Record-Setting Project

This project is made up of two distinct living moss wall installations within the same building:

• The lobby installation — a five-piece living moss wall welcoming visitors and employees at the building’s main entrance
• The stairwell installation — a two-piece 25-foot-tall living moss wall within a five-story stairwell, turning a typically overlooked architectural space into a striking, living centerpiece

Pairing a horizontal, multi-panel lobby feature with a vertical, multi-story living installation gives this project a scale and range that a single flat wall installation couldn’t achieve and it’s a real demonstration of how far Moss Pure’s patented technology can be engineered, from a five-piece composition at eye level to a continuous living surface climbing 25 feet through an active stairwell.

Why This Project Matters

A 200-square-foot Moss Pure living moss wall isn’t just a large decorative feature, it’s a significant engineering undertaking. Every square foot of a Moss Pure installation is a fully assembled, engineered device: a frame, integrated branding, an air-filtration layer, and real, living moss, all sustained without water, sunlight, or electricity. Scaling that system to roughly 200 square feet in a single installation means scaling the patented technology that keeps the moss alive at that size, not simply producing more small panels and mounting them side by side. This is why Moss Pure’s living moss walls are perfect for architects and facilities teams evaluating a moss wall for corporate offices more broadly, this project shows what’s possible at scale.

Partnering with Sasaki Architects

Sasaki Architects is a respected name in architecture and design, and this project continues Moss Pure’s growing track record of partnerships with leading architecture firms, alongside prior collaborations with Perkins and Will, HOK, and Stantec on projects ranging from healthcare to life sciences to luxury residential design.

This project brings that same standard to corporate office design at a scale not previously attempted: real, living moss, engineered air filtration, and zero ongoing infrastructure, applied across a full 200-square-foot feature installation.

What Makes This Possible: Moss Pure is 100% LIVE Moss, Moss Pure is Not Preserved Moss

As with every Moss Pure installation, this project uses genuinely living moss, not preserved, not artificial, kept healthy through Moss Pure’s patented engineered system without watering, sunlight, or electricity. At this scale, that distinction matters even more: a preserved moss installation of this size would be expected to fade, dry out, and require replacement well before a living, engineered system would. Moss Pure’s living moss system is jam packed with patented science, but doesn’t need electricity, watering, maintenance, or sunlight.

Follow the Project

This installation is currently underway, and we’ll be updating this post as construction progresses. The expected completion date is October 2026.

Frequently Asked Questions

Is this the world’s largest moss wall? Moss Pure’s approximately 200-square-foot installation in Boston,MA is believed to be among the largest living moss walls ever built.

Is this moss wall real, living moss? Yes. Like all Moss Pure installations, this project uses genuinely 100% living moss, kept healthy through Moss Pure’s patented engineering without needing watering, sunlight, or maintenance. Moss Pure is not preserved, dried, or artificial moss. Preserved moss is no longer living, treated with toxic chemicals, and does not last without needing replacement. Moss Pure uses award-winning and patented engineering to create a living environment within each Moss Pure device to keep the living moss alive and striving for years.

Is a living moss wall a good fit for a corporate office or workplace?
Yes. Moss Pure’s 100% living moss walls like this one work well in corporate offices and workplaces because they require no watering, sunlight, or electricity, and they don’t need the ongoing maintenance a standard living wall or a preserved moss wall does. This makes Moss Pure living moss walls practical for lobbies, stairwells, and everyday workplace environments, not just record-setting installations. Moss Pure’s living moss walls are designed and engineered for aesthetics and long-term performance.

Who is Moss Pure partnering with on this project? Moss Pure is partnering with Sasaki, a global architecture and design firm, on this installation at a corporate office in Boston, Massachusetts.

How big is the installation? The installation is approximately 200 square feet total, split across two pieces: a five-piece living moss wall in the lobby, and a second installation that spans 25 feet in height through a five-story stairwell — making it one of the largest single living moss wall projects Moss Pure has built to date.

Why is part of the moss wall in a stairwell? The stairwell installation turns a typically overlooked architectural space into a striking, living feature, spanning all five stories in a single continuous 25-foot installation. It’s a distinctive example of how Moss Pure’s living moss technology can be engineered vertically, not just as a flat feature wall.

When will the project be completed? October 2026.

A Note on This Post

This project is still in progress, and this post will be updated as construction continues. Once complete, look for a full project case study with final photos and specifications, alongside Moss Pure’s other featured projects with Perkins and Will, HOK, and Stantec.