Stones, Strategy, and Vision: Iwasaki Yataro and Kiyosumi Garden

 Iwasaki Yataro (1835–1885) was a Japanese entrepreneur and the founder of Mitsubishi. Born into a lower-ranking samurai family in Tosa (present-day Kochi Prefecture), he rose from modest beginnings to become one of the most influential business leaders of the Meiji era. Through determination and sharp strategic thinking, he transformed Mitsubishi into a powerful shipping company that supported Japan’s rapid modernization, later expanding into mining, finance, and heavy industry.

Today, Iwasaki is remembered as a bold and visionary businessman who helped lay the foundation for modern Japanese capitalism.

Yet beyond boardrooms and shipping routes, Iwasaki had another passion—stones.

Famous Stones of Kiyosumi Garden

Iwasaki Yataro was known for his deep appreciation of stones. When developing Kiyosumi Garden in Tokyo, he collected remarkable stones from all over Japan and made them the centerpiece of the garden’s design. These stones were not randomly placed decorations; they were carefully selected symbols of beauty, strength, and cultural refinement.

Among the most notable are:

Sado Red Stone (Sado Akadama-ishi)
Originating from Sado Island, these stones feature a distinctive reddish-brown color and rounded forms. Their massive presence near the water adds warmth and quiet power to the landscape.

Izu Stone
From the Izu Peninsula, this stone has a subtle bluish tone and an extremely hard texture. Often used in Meiji-era construction, it conveys solidity and dignity.

Kishu Blue Stone
Quarried in Kii Province, this smooth stone carries a gentle blue tint. It is particularly striking along the water’s edge, where its color harmonizes beautifully with the pond.

Kurama Stone
From the mountainous area of Kurama near Kyoto, this stone has a naturally weathered, soft appearance. It evokes a serene mountain atmosphere within the garden setting.

The “Iso-watari” Stepping Stones
Large stones placed across the central pond (Dai-sensui) allow visitors to walk across the water. Gathered from various regions of Japan, these stones transform the garden from something merely to observe into something to physically experience.

Why Was Iwasaki So Passionate About Stones?

In the Meiji period, gardens were far more than private retreats—they were important venues for social gatherings and business diplomacy. Iwasaki developed Kiyosumi Garden as a place to entertain distinguished guests and business partners.

By assembling rare and famous stones from across the country, he demonstrated not only aesthetic sensitivity but also the financial strength and nationwide network of the Mitsubishi group. The stones were, in a sense, silent statements of prestige and ambition in a rapidly modernizing Japan.

When you walk through Kiyosumi Garden today, you are not just seeing carefully arranged rocks. You are witnessing the vision of a man who understood both beauty and power—who built ships that carried a nation forward, and who placed stones that quietly told the story of that rise.

Next time you visit, pause for a moment and imagine where each stone came from and why it was placed there. You may find that the garden speaks more than you expected.