Instead of filling large planters with potting mix, use one of these materials to take up space at the bottom of the planter.

For year-round outdoor use, frost-proof plastic ... the more difficult it is to move around. That's why large stone and concrete planters typically stay in one spot for a very long time.

Adding a colourful planter and a few outdoor plants is the easiest way to transform your outdoor space – no matter how big or small. Shop our top picks now.