Galvanized containers lasts longest in your garden.
Using galvanized metal tubs, buckets and pails as planters is a great way to reuse your old or unused metal containers.
Before starting to plant flowers or vegetables, you will need to drill a few holes into the bottom (start with a hammer and nail, continue with an electric drill).
Fill the bottom with rocks and continue to fill the rest with potting soil.
Galvanized tubs are not easy to move after planting, so choose plants accordingly.