Sometimes when space is lacking, your only option is to go up. George A Fuller – the inventor of the modern-day skyscraper – was well aware of this. He showed that you’re not limited by ground-level real estate; rather, you’re limited only by imagination, engineering and cost. The same applies when creating a wall garden.
The popularity of wall gardening has grown as our big, spacious blocks fall by the wayside and growing things vertically now occurs more through necessity than just gardening freestyle. Growing things up a wall, or hanging over a railing, or on top of your head if you wish, are ways of chasing the sun to grow food. As the winter sun further lowers in the northern horizon, chasing it up a wall may be the best - if not only - way to grow through the cool season.
But anyone who has tried to create and then maintain a wall garden - like the one they saw on display at the garden show - would know that success doesn’t come easily. That is because to minimise loading they are often constructed from low-volume, shallow containers, and are thus afflicted with many of the issues that challenge pots. So getting them started is easy, maintaining them however is different proposition. This may just explain the rise of the fake plastic wall gardens - have you noticed them too?