Check out the benefits of metal raised garden beds

Many gardeners are currently planning and creating new patio gardens, and for professional gardeners without a natural garden plot, raised garden beds are often the best option. Garden beds vary widely in size, material, and cost. The choice of wall framing depends on the availability and cost of building materials and the desired appearance of the final product in the landscape. Naturally preservative woods such as rosewood or cedar can also be used. If you have an ample supply of native rock on site, you can mix it in dry heap or mortar. Other possibilities include sheet metal, wood, concrete blocks, bricks or synthetic wood made from recycled plastic. National horticultural publications have raised concerns about the safety of using treated wood as garden beds in food gardens. The U.S. Environmental Protection Agency phased out the residential use of wood treated with arsenic-containing compounds in 2003, and these treatments have been modified to use copper-containing compounds. Similar problems exist with creosote and the use of railroad sleepers in raised garden beds in food production. After reviewing the available information, we recommend another material: galvanized metal. Galvanized metal raised garden beds will incur initial cost and labor, but the finished product will last for years and provide usable growing space for your plants. After reviewing the available information, we recommend another material: galvanized metal. Galvanized metal raised garden beds will incur initial cost and labor, but the finished product will last for years and provide usable growing space for your plants. After reviewing the available information, we recommend another material: galvanized metal. Galvanized metal raised garden beds will incur initial cost and labor, but the finished product will last for years and provide usable growing space for your plants.

The most convenient width for a raised metal garden bed is 4 feet. This may vary depending on the gardener's goals and terrain. Hillside terraces may require different garden bed sizes than flat vegetable gardens. On the hillside, follow the contours of the land and adjust the depth of the bed to the hillside. On flat ground, you can be more creative. Depending on your goals and needs, make sure the path is wide enough to allow equipment and wheelchair access. The center of the garden bed can be accessed from both sides. If you can only access the garden bed from one side, limit the width to 3 feet. Most gardeners find it uncomfortable to tend to garden beds longer than 3 feet. The height of garden beds can vary, but 18 to 24 inches is fairly common. The length of the raised garden bed is not critical; 24 feet is probably a good maximum length. A walkway three feet wide is usually sufficient. These can be covered with a weed barrier or wood chips to reduce weeds.

Metal Raised Garden Bed

After building a raised metal garden bed, you'll be faced with finding the right soil to fill it with. Because raised metal garden beds are raised from the ground, it is important to use an absorbent soil mix to help retain water and nutrients. The ideal soil type is sandy loam, which is basically loose, well-drained, and rich in organic matter. You can purchase special bags of garden bed soil to fill metal raised garden beds, or you can experiment with a mixture of garden soil and potting soil, making sure to use more garden soil than potting mix, usually in a 5:1 ratio. Compost is an ideal soil amendment because it enriches the soil with essential nutrients without leach chemicals into the soil. You should regularly use organic compost or mulch on your garden beds to improve soil quality.

Remember to build enough garden beds to allow for crop rotation. Crops of certain plant families need to be rotated with crops of other families to avoid diseases and other pests. Filling a small metal raised garden bed with tomatoes and peppers each year can be a challenge without eventually running into disease problems.