Can you grow plants in a can?
There are a few things to consider if growing edibles in metal cans. When a tin can is opened and the inner layer is exposed to oxygen, it begins to break down. If using an older can, make sure there is no rust. This may still be present when you plant into the can (even after washing) and can affect your veggie plant. Problems with Using Tin Can Planters If using an older can, make sure there is no rust. This may still be present when you plant into the can (even after washing) and can affect your veggie plant. Some tin cans have an inner plastic coating which can include BPA, and may also cause problems with planting food in them.
How to grow a plant in a container?
Remove plants from their nursery pots and position them in the container. Consider what angles the container will be viewed from – for pots against a wall or fence you will typically want taller plants at the back, for free-standing containers viewed from all sides you might have taller plants in the centre. It is best to leave an inch or two between the edge of the pot and the edge of the soil from the plants. This will give the plant room to root-out in all directions. From there you simply want to arrange the plants so each plant has some room and the whole planter will be filled.