Corten (or COR-TEN) is the most commonly used name for weathering steel. Weathering steel is designed to develop a thin layer of rust that acts as a protective coating. I like to think of it as shou sugi ban> for steel.
Corten was developed for practical reasons: to eliminate the need to paint or coat steel. For a landscape designer corten’s primary appeal is aesthetic. The patina the steel acquires is attractive in a way that works so well with stone, wood, and plants.
Here at Ross NW Watergardens we most often use corten steel for pots, planters, troughs, and raised beds>. It can also be used for retaining walls>, screens>, fences>, and fire features>. Are you considering corten steel for your landscape design project?