Metal planters can take any weather and last for years but watch out for rust
Metal planters vary significantly in cost, appearance, and durability. Before selection, review the basic characteristics to ensure the best fit for your chosen application.
Advantages and disadvantages
Metal planters offer a good number of advantages. They can be left outside year-round since they won’t freeze and are durable enough to endure rough treatment. They can last for years, if properly maintained – in fact, they often become more beautiful over time. They also retain water well and don’t absorb it.
However, as with other types of container, there are disadvantages. Metal containers can corrode or rust, depending on the type of metal and level of maintenance. They can also be heavy and expensive, and do not drain well if you’re not using a purpose-built planter that comes with drainage holes.
Which metal?
Every metal has characteristics that make it suitable for different applications. Stainless steel and aluminum containers are rust-resistant. Large stainless steel containers are tough but can be heavy. Aluminum is lightweight but not as durable as stainless steel. Copper and brass containers can cost a bit more, but with care they can last for years. In addition, over time they can acquire an attractive patina, giving them a unique look. Iron and lead containers are heavy but durable.
Which plants?
Metal containers are appropriate for many plants. Large metal planters are perfect for trees and flowering plants, especially in areas where they might be near frequent traffic and receive the odd knock. Small metal planters are an attractive way to showcase beautiful herbs and flowers. All the sizes in between can be used for vegetables – but do not use lead or lead-lined containers for plants that could be ingested.
Since metal does not absorb or drain water, where drainage is important you can drill holes an inch or so above the bottom, or line the container with rocks, broken pottery or shells. If water retention is important, metal without drainage is perfect as it is.
Location tip
Do not use metal planters in areas where they will receive direct sunlight. Metal can heat up and dry out the roots of the plants contained in them, so place the plants in shady areas or in locations where the sun shines for brief periods throughout the day.
Selected carefully and maintained properly, metal planters can give you years of enjoyment.
