At Art Metal, we specialize in designing and fabricating custom corten steel planters that bring modern sophistication and long-lasting performance to outdoor spaces throughout Toronto and the Greater Toronto Area. With over 20 years of experience crafting premium metal planters, our work combines structural durability with architectural style to enhance gardens, patios, commercial landscapes, and more.
Corten steel planters are not only beautiful but engineered to withstand all weather conditions while developing a rich, natural patina over time that evolves with your landscape.
Corten steel, also known as weathering steel, is a high-strength alloy designed to resist atmospheric corrosion. When exposed to air and moisture, it naturally forms a protective rust-like surface layer called a patina. This layer protects the steel from further corrosion while creating a warm, earthy finish that blends seamlessly with plants and outdoor materials.
Unlike other metals that require coatings or paint, corten steel develops its protective surface on its own, making it ideal for outdoor planters that are meant to age beautifully while providing lasting performance.
Corten steel design is engineered for longevity and outdoor performance. The protective patina that forms over time shields the planter’s surface from corrosion, allowing it to withstand rain, snow, and seasonal temperature swings without degrading.
Once the patina has developed, corten steel planters require minimal upkeep. There’s no need for painting, sealing, or seasonal treatments — routine rinsing is usually all that’s needed to keep them looking great.
The rusted brown and amber tones of corten steel create a natural, organic look that complements greenery, stone, wood, and concrete. This evolving finish adds texture and visual interest to modern, rustic, and traditional landscapes alike.
Corten steel’s dense composition and welded construction allow planters to support heavy soil, large plants, shrubs, and even small trees without bowing or losing shape.
Corten steel is highly recyclable and long-lasting, which reduces the need for frequent replacements and contributes to more sustainable landscaping.
Corten steel planters are versatile and suitable for a wide range of applications:
At Art Metal, our corten steel planters can be fully customized:
We can tailor each planter to your specific landscape design, plant selection, and functional needs.
Unlike painted planters that may fade, corten steel naturally develops its color and texture over time. This process can take several months and results in a unique finish that enhances garden aesthetics. It’s important, particularly during the early weathering phase, to allow the patina to develop evenly for the best long-term appearance and performance.
To ensure the best results from your corten steel planter:
Corten steel planters are more than containers — they are architectural elements that define space, add organic warmth, and support plant life with rugged longevity. Their distinctive finish and enduring strength make them an excellent investment for both residential and commercial landscape projects.
