Traditional Japanese Craftsmanship in Watering Cans

Negishi Industry Co., Ltd.

Traditional Japanese Craftsmanship in Watering Cans
Copper Long-Necked Watering Cans

Copper Long-Necked Watering Cans

Utilizing materials suited for plants, repairable lead-free soldering, and pursuing ultimate lightness in watering cans.

Founded in 1944 amidst a scarcity of resources towards the end of World War II. The founder, Kuranobu, was a roof craftsman for shrines and temples and worked with copper for roofing. He utilized his skills to manufacture and sell daily necessities. Among them were watering cans. The second generation, Osamu, developed copper watering cans while learning from a bonsai master. We continue to manufacture watering cans with traditional methods built for repairability, a practice rooted in Japanese culture. We consult with universities, research institutions, and horticulturists for improvements and the development of new watering can models, incorporating their feedback into our products. We work diligently, using a soldering iron in over 1300℃ coke fire. We also train overseas artisans to repair our products abroad. Although Negishi Industries products don’t carry a company emblem, it symbolizes “it’s not yet complete.”

Mesh Nets on Copper Long-Necked Watering Cans

Mesh Nets on Copper Long-Necked Watering Cans

Characteristics of Copper Watering Cans

Copper watering cans, with their antibacterial properties, prevent water stagnation, and the dissolved copper ions enhance moss growth on the bonsai tray. When drawing room-temperature water from a container, like one filled with rainwater, the mesh filter at the water inlet prevents leaves and debris from entering. By lengthening the spout of the watering cans, you can control water pressure, ensuring a consistent and stable watering experience. The shower head attachment at the tip of the watering cans is replaceable. By changing to a different type, you can achieve watering patterns to your liking.
Kunio Kobayashi, Shunkaen Cultivator for Yasunari Kawabata's Bonsai

Kunio Kobayashi, Shunkaen Cultivator for Yasunari Kawabata's Bonsai

Watering Cans Maximizing Material Functionality

We use "high-quality Japanese metals" that are highly rated overseas. Our lineup includes Copper Watering Cans, Stainless Steel Watering Cans, and Brass Watering Cans. Besides, we use Stainless, Clean Bright, and GMX, engaging closely with Japan Copper Center to choose materials suited for plants, ensuring optimal performance in watering. Interactions with material manufacturers, universities, research institutions, and horticulturists lead to problem-solving and new ideas, enabling the provision of evolving watering cans day by day.
Explaining to Customers at an Exhibition in Milan, Italy

Explaining to Customers at an Exhibition in Milan, Italy

Overseas After-Follow Up

Negishi Industry, the only manufacturer of copper watering cans for bonsai in Japan, has seen its watering cans gain international attention with exports abroad. Appreciated by bonsai enthusiasts worldwide, it enjoys high popularity overseas. We also engage in activities to explain the structure and share the joy of creating watering cans at various exhibitions. After-follow-up is available in Europe. Additionally, we train overseas artisans to handle our products abroad, ensuring support for products that have traveled overseas.