Corten Steel Long Box Planter

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13" H
16" H
$139.98 - $275.98

Free Shipping Over $199

The Corten Steel Long Box Planter is the ultimate addition to any modern large outdoor space! This modern steel planter features a rust developed patina finish and a sleek rectangular design, its ideal as a patio accent or as a garden focal point. The planters are crafted from a thick gauge, fully seam welded corten steel base - proven to resist cracking in both winter and summer months. The developed patina finish protects the steel from additional corrosion and exhibits surface rust for design purposes only! In addition, these planters are equipped with styrofoam insulation to help ensure that plants stay healthy in both hot and cold climates. The Corten Steel Long Box Planter arrives in their raw unrusted state and will rust with natural exposure to the weather.

  • Material: Corten Steel
  • Finish: Develops rusted patina finish 
  • Patina protects from additional corrosion
  • Drainage holes included
  • Usage: Outdoor only
  • Ideal in both residential and commercial settings
  • Fully seam welded using thick gauge corten steel
  • Perfect balance of durability and design
  • Comes with riser feet to allow for optimal drainage and aeration
  • Frost and crack resistant for colder climates
  • Fully hand welded by expert craftsmen
  • Equipped with insulation for root protection during harsh winter and summer months
  • Note: All Corten Steel planters are shipped in their raw, unrusted state.
  • This product does not ship to Canada, Alaska, and Hawaii
Sizing: Small: Medium: Large:
Product Dimensions: 25L x 11"W x 13"H 32"L x 10"W x 16"H 38"L x 15"W x 16"H
Water Capacity: 1792 oz 2688 oz 4736 oz
Planter Weight: 12 lb 20 lb 30 lb


What is Corten Steel?

Corten is a trade name for a steel alloy material and is a weathering steel. The material is corrosion resistant steel and if left uncoated develops an outer layer patina. This patina protects the steel from additional corrosion. Corten Steel Planters are made to rust and will start showing the signs of rusting if you just put them outside for a couple months and let Mother Nature take its course!

How to make Corten Steel rust faster:

If you want to initiate the rusting quickly, first wash the planter with warm water and soap. This will remove any remnants of oil and the water will react with the metal initiating oxidation (rusting). Next, mix together the following ingredients into a spray bottle, or a fertilizer pump sprayer:

  • 16oz Hydrogen Peroxide (Use a fresh bottle)
  • 2 oz White Vinegar
  • 1/2 Tablespoon of salt

By using this mixture and lightly spraying the planter 3-4 times a day, you will achieve the fully rusted look in a matter of a few days!

Most Urbilis items may be refunded within 30 days of purchase. Please check your product's page for any return restrictions or potential restocking fees. Made-to-order items, custom orders, and items with requested drainage holes may not be returned. Refunds are provided with considerations to the original outbound shipping costs as well as the restocking fee, if applicable. For our full return policy, please visit our Customer Care page.

4 Reviews Hide Reviews Show Reviews

  • 5
    Corten Steel long planter box

    Posted by Unknown on 27th Sep 2019

    Quality product

  • 5
    The perfect planter!

    Posted by Shanna on 23rd Jun 2019

    I’m very pleased with this planter, it’s just want I was looking for. I feel the price is incredibly reasonable for the quality, which is excellent! Following the directions on your site, I was able to quickly patina the planter, it already looks well-lived. I love it (and hope you will consider offering a large round corten planter in the future)! Thank you for a great product.

  • 5
    Corten Steel Planters

    Posted by Helen Donis-Keller on 27th May 2019

    The planters arrived well packed and ahead of schedule. They were in great condition and I followed the directions to treat them with the recommended solution to advance the patina process which worked quickly. They look beautiful next to our revitalized factory building that is now a condominium. The style is architecturally in keeping with the building. The quality of the planters is excellent and we look forward to many years of use.

  • 5

    Posted by Ami on 31st Mar 2019

    We are extremely pleased with this planter. I’d been looking for a simple rectangular planter for quite some time and the price, design and material on this planter were excellent.